201215100510 has 32 divisors (see below), whose sum is σ = 536573602080. Its totient is φ = 53657360064.

The previous prime is 201215100509. The next prime is 201215100521. The reversal of 201215100510 is 15001512102.

201215100510 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 151 + 0 + 0 + 510 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

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, 372620287 + ... + 372620826.

It is an arithmetic number, because the mean of its divisors is an integer number (16767925065).

Almost surely, 2^201215100510 is an apocalyptic number.

201215100510 is an abundant number, since it is smaller than the sum of its proper divisors (335358501570).

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

201215100510 is a wasteful number, since it uses less digits than its factorization.

201215100510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745241129 (or 745241123 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 201215100510 its reverse (15001512102), we get a palindrome (216216612612).

The spelling of 201215100510 in words is "two hundred one billion, two hundred fifteen million, one hundred thousand, five hundred ten".