102111122120211 has 48 divisors (see below), whose sum is σ = 158255139519360. Its totient is φ = 63317130105600.

The previous prime is 102111122120207. The next prime is 102111122120309. The reversal of 102111122120211 is 112021221111201.

It is a happy number.

102111122120211 is a `hidden beast` number, since 1 + 0 + 211 + 1 + 1 + 221 + 20 + 211 = 666.

It is not a de Polignac number, because 102111122120211 - 2² = 102111122120207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102111122120201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51370155 + ... + 53320868.

It is an arithmetic number, because the mean of its divisors is an integer number (3296982073320).

Almost surely, 2^{102111122120211} is an apocalyptic number.

102111122120211 is a deficient number, since it is larger than the sum of its proper divisors (56144017399149).

102111122120211 is a wasteful number, since it uses less digits than its factorization.

102111122120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104691196 (or 104691193 counting only the distinct ones).

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

Adding to 102111122120211 its reverse (112021221111201), we get a palindrome (214132343231412).

The spelling of 102111122120211 in words is "one hundred two trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, two hundred eleven".