102120021111102 has 64 divisors (see below), whose sum is σ = 218977669209600. Its totient is φ = 31669890278400.

The previous prime is 102120021111089. The next prime is 102120021111131. The reversal of 102120021111102 is 201111120021201.

It is a happy number.

102120021111102 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25391227 + ... + 29136822.

It is an arithmetic number, because the mean of its divisors is an integer number (3421526081400).

Almost surely, 2^{102120021111102} is an apocalyptic number.

102120021111102 is an abundant number, since it is smaller than the sum of its proper divisors (116857648098498).

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

102120021111102 is a wasteful number, since it uses less digits than its factorization.

102120021111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54528449.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102120021111102 its reverse (201111120021201), we get a palindrome (303231141132303).

The spelling of 102120021111102 in words is "one hundred two trillion, one hundred twenty billion, twenty-one million, one hundred eleven thousand, one hundred two".