2121626361020 has 12 divisors (see below), whose sum is σ = 4455415358184. Its totient is φ = 848650544400.

The previous prime is 2121626360983. The next prime is 2121626361047. The reversal of 2121626361020 is 201636261212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53040659006 + ... + 53040659045.

It is an arithmetic number, because the mean of its divisors is an integer number (371284613182).

Almost surely, 2^{2121626361020} is an apocalyptic number.

2121626361020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121626361020 is an abundant number, since it is smaller than the sum of its proper divisors (2333788997164).

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

2121626361020 is a wasteful number, since it uses less digits than its factorization.

2121626361020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106081318060 (or 106081318058 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 2121626361020 in words is "two trillion, one hundred twenty-one billion, six hundred twenty-six million, three hundred sixty-one thousand, twenty".