2021020102122 has 32 divisors (see below), whose sum is σ = 4619633098752. Its totient is φ = 577414492464.

The previous prime is 2021020102051. The next prime is 2021020102139. The reversal of 2021020102122 is 2212010201202.

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, 434743 + ... + 2056949.

It is an arithmetic number, because the mean of its divisors is an integer number (144363534336).

Almost surely, 2^{2021020102122} is an apocalyptic number.

2021020102122 is an abundant number, since it is smaller than the sum of its proper divisors (2598612996630).

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

2021020102122 is a wasteful number, since it uses less digits than its factorization.

2021020102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651882.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021020102122 its reverse (2212010201202), we get a palindrome (4233030303324).

The spelling of 2021020102122 in words is "two trillion, twenty-one billion, twenty million, one hundred two thousand, one hundred twenty-two".