102021211122112 has 56 divisors (see below), whose sum is σ = 202741419052800. Its totient is φ = 50936767178496.

The previous prime is 102021211122067. The next prime is 102021211122119. The reversal of 102021211122112 is 211221112120201.

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 102021211122112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021211122119) 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, 974520523 + ... + 974625205.

Almost surely, 2^{102021211122112} is an apocalyptic number.

It is an amenable number.

102021211122112 is a deficient number, since it is larger than the sum of its proper divisors (100720207930688).

102021211122112 is a wasteful number, since it uses less digits than its factorization.

102021211122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126593 (or 126583 counting only the distinct ones).

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

Adding to 102021211122112 its reverse (211221112120201), we get a palindrome (313242323242313).

The spelling of 102021211122112 in words is "one hundred two trillion, twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, one hundred twelve".