10020111102 has 32 divisors (see below), whose sum is σ = 22517114400. Its totient is φ = 3302506944.

The previous prime is 10020111067. The next prime is 10020111113. The reversal of 10020111102 is 20111102001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037653 + ... + 1047264.

It is an arithmetic number, because the mean of its divisors is an integer number (703659825).

Almost surely, 2^10020111102 is an apocalyptic number.

10020111102 is an abundant number, since it is smaller than the sum of its proper divisors (12497003298).

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

10020111102 is a wasteful number, since it uses less digits than its factorization.

10020111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085017 (or 2085011 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10020111102 its reverse (20111102001), we get a palindrome (30131213103).

The spelling of 10020111102 in words is "ten billion, twenty million, one hundred eleven thousand, one hundred two".