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21022000010001 = 352941601121063
BaseRepresentation
bin1001100011110100100001…
…10101111101001100010001
32202102200110022210020100000
410301322100311331030101
510223411024000310001
6112413212401120213
74266534520540524
oct461722065751421
982380408706300
1021022000010001
11677541aa66081
122436255329069
13b9649b405c73
14529682448bbb
15266c6cc2da86
hex131e90d7d311

21022000010001 has 96 divisors (see below), whose sum is σ = 33425925361920. Its totient is φ = 13179293568000.

The previous prime is 21022000009987. The next prime is 21022000010003. The reversal of 21022000010001 is 10001000022012.

It is not a de Polignac number, because 21022000010001 - 213 = 21022000001809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (21022000010003) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 173584596 + ... + 173705658.

It is an arithmetic number, because the mean of its divisors is an integer number (348186722520).

Almost surely, 221022000010001 is an apocalyptic number.

It is an amenable number.

21022000010001 is a deficient number, since it is larger than the sum of its proper divisors (12403925351919).

21022000010001 is a wasteful number, since it uses less digits than its factorization.

21022000010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121749 (or 121737 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 21022000010001 its reverse (10001000022012), we get a palindrome (31023000032013).

The spelling of 21022000010001 in words is "twenty-one trillion, twenty-two billion, ten thousand, one".

Divisors: 1 3 9 27 29 41 81 87 123 243 261 369 601 783 1107 1189 1803 2349 3321 3567 5409 7047 9963 10701 16227 17429 24641 32103 48681 52287 73923 96309 121063 146043 156861 221769 288927 363189 470583 665307 714589 1089567 1411749 1995921 2143767 3268701 3510827 4235247 4963583 5987763 6431301 9806103 10532481 14890749 19293903 29418309 31597443 44672247 57881709 72758863 94792329 134016741 143943907 173645127 218276589 284376987 402050223 431831721 654829767 853130961 1206150669 1295495163 1964489301 2110007027 2983113383 3886485489 5893467903 6330021081 8949340149 11659456467 17680403709 18990063243 26848020447 34978369401 56970189729 80544061341 86510288107 170910569187 241632184023 259530864321 512731707561 724896552069 778592592963 2335777778889 7007333336667 21022000010001