2021125572516 has 48 divisors (see below), whose sum is σ = 4921714224000. Its totient is φ = 644323502592.

The previous prime is 2021125572491. The next prime is 2021125572523. The reversal of 2021125572516 is 6152755211202.

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, 1391020 + ... + 2444828.

It is an arithmetic number, because the mean of its divisors is an integer number (102535713000).

Almost surely, 2^{2021125572516} is an apocalyptic number.

It is an amenable number.

2021125572516 is an abundant number, since it is smaller than the sum of its proper divisors (2900588651484).

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

2021125572516 is a wasteful number, since it uses less digits than its factorization.

2021125572516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060788 (or 1060786 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 39.

The spelling of 2021125572516 in words is "two trillion, twenty-one billion, one hundred twenty-five million, five hundred seventy-two thousand, five hundred sixteen".