102122121210112 has 72 divisors (see below), whose sum is σ = 207813007852352. Its totient is φ = 50072257382400.

The previous prime is 102122121210103. The next prime is 102122121210113. The reversal of 102122121210112 is 211012121221201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102122121210112.

It is not an unprimeable number, because it can be changed into a prime (102122121210113) 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, 4709628 + ... + 15047419.

Almost surely, 2^{102122121210112} is an apocalyptic number.

It is an amenable number.

102122121210112 is an abundant number, since it is smaller than the sum of its proper divisors (105690886642240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102122121210112 is an equidigital number, since it uses as much as digits as its factorization.

102122121210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19757455 (or 19757441 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102122121210112 its reverse (211012121221201), we get a palindrome (313134242431313).

The spelling of 102122121210112 in words is "one hundred two trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred ten thousand, one hundred twelve".