2121002102022 has 64 divisors (see below), whose sum is σ = 4403622481920. Its totient is φ = 680236292736.

The previous prime is 2121002102017. The next prime is 2121002102033. The reversal of 2121002102022 is 2202012001212.

It is a junction number, because it is equal to n+sod(n) for n = 2121002101992 and 2121002102010.

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, 245283303 + ... + 245291949.

It is an arithmetic number, because the mean of its divisors is an integer number (68806601280).

Almost surely, 2^{2121002102022} is an apocalyptic number.

2121002102022 is an abundant number, since it is smaller than the sum of its proper divisors (2282620379898).

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

2121002102022 is a wasteful number, since it uses less digits than its factorization.

2121002102022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13445.

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

Adding to 2121002102022 its reverse (2202012001212), we get a palindrome (4323014103234).

The spelling of 2121002102022 in words is "two trillion, one hundred twenty-one billion, two million, one hundred two thousand, twenty-two".