2021125572512 has 24 divisors (see below), whose sum is σ = 3979132633476. Its totient is φ = 1010552205312.

The previous prime is 2021125572491. The next prime is 2021125572523. The reversal of 2021125572512 is 2152755211202.

It can be written as a sum of positive squares in 2 ways, for example, as 1900107861136 + 121017711376 = 1378444^2 + 347876^2 .

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, 3432098 + ... + 3977630.

Almost surely, 2^{2021125572512} is an apocalyptic number.

It is an amenable number.

2021125572512 is a deficient number, since it is larger than the sum of its proper divisors (1958007060964).

2021125572512 is a wasteful number, since it uses less digits than its factorization.

2021125572512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661320 (or 661312 counting only the distinct ones).

The product of its (nonzero) digits is 28000, while the sum is 35.

The spelling of 2021125572512 in words is "two trillion, twenty-one billion, one hundred twenty-five million, five hundred seventy-two thousand, five hundred twelve".