102021220122112 has 40 divisors (see below), whose sum is σ = 203846125725000. Its totient is φ = 51009872922624.

The previous prime is 102021220122089. The next prime is 102021220122163. The reversal of 102021220122112 is 211221022120201.

It is a self number, because there is not a number n which added to its sum of digits gives 102021220122112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34921639 + ... + 37730137.

It is an arithmetic number, because the mean of its divisors is an integer number (5096153143125).

Almost surely, 2^{102021220122112} is an apocalyptic number.

It is an amenable number.

102021220122112 is a deficient number, since it is larger than the sum of its proper divisors (101824905602888).

102021220122112 is an frugal number, since it uses more digits than its factorization.

102021220122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2879466 (or 2879450 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 102021220122112 its reverse (211221022120201), we get a palindrome (313242242242313).

The spelling of 102021220122112 in words is "one hundred two trillion, twenty-one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twelve".