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102222121323331 = 127849379955167
BaseRepresentation
bin10111001111100001110001…
…001110101100101101000011
3111101221100011101121201112201
4113033201301032230231003
5101344301401024321311
61001224105542334031
730350206313555332
oct2717416116545503
9441840141551481
10102222121323331
112a63118161a859
12b56b3b972a317
134506673a197c9
141b358116a5d19
15bc4072d179c1
hex5cf8713acb43

102222121323331 has 4 divisors (see below), whose sum is σ = 102222202556992. Its totient is φ = 102222040089672.

The previous prime is 102222121323299. The next prime is 102222121323347. The reversal of 102222121323331 is 133323121222201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102222121323331 - 25 = 102222121323299 is a prime.

It is a super-2 number, since 2×1022221213233312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102222121323331.

It is not an unprimeable number, because it can be changed into a prime (102222121323431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38699091 + ... + 41256076.

It is an arithmetic number, because the mean of its divisors is an integer number (25555550639248).

Almost surely, 2102222121323331 is an apocalyptic number.

102222121323331 is a deficient number, since it is larger than the sum of its proper divisors (81233661).

102222121323331 is an equidigital number, since it uses as much as digits as its factorization.

102222121323331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81233660.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 102222121323331 its reverse (133323121222201), we get a palindrome (235545242545532).

The spelling of 102222121323331 in words is "one hundred two trillion, two hundred twenty-two billion, one hundred twenty-one million, three hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 1278493 79955167 102222121323331