102221210111121 has 12 divisors (see below), whose sum is σ = 155424062157520. Its totient is φ = 64560764280600.

The previous prime is 102221210111107. The next prime is 102221210111203. The reversal of 102221210111121 is 121111012122201.

It is a happy number.

102221210111121 is a `hidden beast` number, since 1 + 0 + 2 + 221 + 210 + 111 + 121 = 666.

It is not a de Polignac number, because 102221210111121 - 2³⁷ = 102083771157649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221210111094 and 102221210111103.

It is not an unprimeable number, because it can be changed into a prime (102221210111621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 298892427055 + ... + 298892427396.

Almost surely, 2^{102221210111121} is an apocalyptic number.

It is an amenable number.

102221210111121 is a deficient number, since it is larger than the sum of its proper divisors (53202852046399).

102221210111121 is a wasteful number, since it uses less digits than its factorization.

102221210111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597784854476 (or 597784854473 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 102221210111121 its reverse (121111012122201), we get a palindrome (223332222233322).

The spelling of 102221210111121 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred ten million, one hundred eleven thousand, one hundred twenty-one".