201215500050 has 24 divisors (see below), whose sum is σ = 499014440496. Its totient is φ = 53657466640.

The previous prime is 201215500037. The next prime is 201215500097. The reversal of 201215500050 is 50005512102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670718184 + ... + 670718483.

It is an arithmetic number, because the mean of its divisors is an integer number (20792268354).

Almost surely, 2^201215500050 is an apocalyptic number.

201215500050 is an abundant number, since it is smaller than the sum of its proper divisors (297798940446).

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

201215500050 is a wasteful number, since it uses less digits than its factorization.

201215500050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341436682 (or 1341436677 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The spelling of 201215500050 in words is "two hundred one billion, two hundred fifteen million, five hundred thousand, fifty".