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22022022222121 = 331916993390463
BaseRepresentation
bin1010000000111011001101…
…10011111101000100101001
32212222021200121000011010011
411000131212303331010221
510341302100142101441
6114500435523451521
74432016145231115
oct500354663750451
985867617004104
1022022022222121
11702053a482299
122578022826ba1
13c3988b17aa6c
14561c2b7d4745
15282c9b3d1581
hex140766cfd129

22022022222121 has 8 divisors (see below), whose sum is σ = 22030010117120. Its totient is φ = 22014035148672.

The previous prime is 22022022222071. The next prime is 22022022222149. The reversal of 22022022222121 is 12122222022022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22022022222121 - 27 = 22022022221993 is a prime.

It is a super-2 number, since 2×220220222221212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22022022222092 and 22022022222101.

It is not an unprimeable number, because it can be changed into a prime (22022022222191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56204536 + ... + 56594998.

It is an arithmetic number, because the mean of its divisors is an integer number (2753751264640).

Almost surely, 222022022222121 is an apocalyptic number.

It is an amenable number.

22022022222121 is a deficient number, since it is larger than the sum of its proper divisors (7987894999).

22022022222121 is a wasteful number, since it uses less digits than its factorization.

22022022222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410775.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 22022022222121 its reverse (12122222022022), we get a palindrome (34144244244143).

The spelling of 22022022222121 in words is "twenty-two trillion, twenty-two billion, twenty-two million, two hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 3319 16993 390463 56399767 1295946697 6635137759 22022022222121