210215501000 has 32 divisors (see below), whose sum is σ = 491904274680. Its totient is φ = 84086200000.

The previous prime is 210215500931. The next prime is 210215501017. The reversal of 210215501000 is 105512012.

It can be written as a sum of positive squares in 4 ways, for example, as 81726230884 + 128489270116 = 285878^2 + 358454^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 210215501000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105106751 + ... + 105108750.

Almost surely, 2^210215501000 is an apocalyptic number.

210215501000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210215501000 is an abundant number, since it is smaller than the sum of its proper divisors (281688773680).

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

210215501000 is a wasteful number, since it uses less digits than its factorization.

210215501000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210215522 (or 210215508 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 17.

The spelling of 210215501000 in words is "two hundred ten billion, two hundred fifteen million, five hundred one thousand".