1012111202102 has 64 divisors (see below), whose sum is σ = 2127003024384. Its totient is φ = 348170106240.

The previous prime is 1012111202099. The next prime is 1012111202161. The reversal of 1012111202102 is 2012021112101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10944173 + ... + 11036264.

It is an arithmetic number, because the mean of its divisors is an integer number (33234422256).

Almost surely, 2^{1012111202102} is an apocalyptic number.

1012111202102 is an abundant number, since it is smaller than the sum of its proper divisors (1114891822282).

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

1012111202102 is a wasteful number, since it uses less digits than its factorization.

1012111202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21980493.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1012111202102 its reverse (2012021112101), we get a palindrome (3024132314203).

Subtracting 1012111202102 from its reverse (2012021112101), we obtain a palindrome (999909909999).

The spelling of 1012111202102 in words is "one trillion, twelve billion, one hundred eleven million, two hundred two thousand, one hundred two".