2021111031102 has 16 divisors (see below), whose sum is σ = 4093389431040. Its totient is φ = 665175782232.

The previous prime is 2021111031091. The next prime is 2021111031167. The reversal of 2021111031102 is 2011301111202.

It is a super-2 number, since 2×2021111031102² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2131973188 + ... + 2131974135.

It is an arithmetic number, because the mean of its divisors is an integer number (255836839440).

Almost surely, 2^{2021111031102} is an apocalyptic number.

2021111031102 is an abundant number, since it is smaller than the sum of its proper divisors (2072278399938).

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

2021111031102 is a wasteful number, since it uses less digits than its factorization.

2021111031102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4263947407.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 2021111031102 its reverse (2011301111202), we get a palindrome (4032412142304).

The spelling of 2021111031102 in words is "two trillion, twenty-one billion, one hundred eleven million, thirty-one thousand, one hundred two".