2021111002104 has 32 divisors (see below), whose sum is σ = 5061752277120. Its totient is φ = 672507031136.

The previous prime is 2021111002033. The next prime is 2021111002139. The reversal of 2021111002104 is 4012001111202.

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, 74775972 + ... + 74802995.

It is an arithmetic number, because the mean of its divisors is an integer number (158179758660).

Almost surely, 2^{2021111002104} is an apocalyptic number.

2021111002104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2021111002104 is an abundant number, since it is smaller than the sum of its proper divisors (3040641275016).

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

2021111002104 is a wasteful number, since it uses less digits than its factorization.

2021111002104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149579539 (or 149579535 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2021111002104 its reverse (4012001111202), we get a palindrome (6033112113306).

The spelling of 2021111002104 in words is "two trillion, twenty-one billion, one hundred eleven million, two thousand, one hundred four".