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102222202202021 = 1187371063629103
BaseRepresentation
bin10111001111100001110110…
…000011001110011110100101
3111101221100101000210210020202
4113033201312003032132211
5101344302032230431041
61001224121552040245
730350211315201266
oct2717416603163645
9441840330723222
10102222202202021
112a631213241150
12b56b420833085
1345066876c6b15
141b3581c31a96d
15bc4079e91a9b
hex5cf8760ce7a5

102222202202021 has 8 divisors (see below), whose sum is σ = 111527893329024. Its totient is φ = 92918638350720.

The previous prime is 102222202201981. The next prime is 102222202202053. The reversal of 102222202202021 is 120202202222201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102222202202021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102222202201984 and 102222202202002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222202262021) 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, 531718445 + ... + 531910658.

It is an arithmetic number, because the mean of its divisors is an integer number (13940986666128).

Almost surely, 2102222202202021 is an apocalyptic number.

102222202202021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102222202202021 is a deficient number, since it is larger than the sum of its proper divisors (9305691127003).

102222202202021 is a wasteful number, since it uses less digits than its factorization.

102222202202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063637851.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 102222202202021 its reverse (120202202222201), we get a palindrome (222424404424222).

The spelling of 102222202202021 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred two million, two hundred two thousand, twenty-one".

Divisors: 1 11 8737 96107 1063629103 11699920133 9292927472911 102222202202021