2121527938530 has 256 divisors, whose sum is σ = 7238504964096. Its totient is φ = 382989496320.

The previous prime is 2121527938529. The next prime is 2121527938549. The reversal of 2121527938530 is 358397251212.

It is a self number, because there is not a number n which added to its sum of digits gives 2121527938530.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1567342 + ... + 2588361.

It is an arithmetic number, because the mean of its divisors is an integer number (28275410016).

Almost surely, 2^{2121527938530} is an apocalyptic number.

2121527938530 is an abundant number, since it is smaller than the sum of its proper divisors (5116977025566).

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

2121527938530 is a wasteful number, since it uses less digits than its factorization.

2121527938530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155761.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 2121527938530 in words is "two trillion, one hundred twenty-one billion, five hundred twenty-seven million, nine hundred thirty-eight thousand, five hundred thirty".