2137215100 has 18 divisors (see below), whose sum is σ = 4637756984. Its totient is φ = 854886000.

The previous prime is 2137215049. The next prime is 2137215103. The reversal of 2137215100 is 15127312.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137215103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10685976 + ... + 10686175.

Almost surely, 2^2137215100 is an apocalyptic number.

2137215100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2137215100 is an abundant number, since it is smaller than the sum of its proper divisors (2500541884).

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

2137215100 is a wasteful number, since it uses less digits than its factorization.

2137215100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21372165 (or 21372158 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2137215100 is about 46230.0237940670. The cubic root of 2137215100 is about 1288.0994989876.

The spelling of 2137215100 in words is "two billion, one hundred thirty-seven million, two hundred fifteen thousand, one hundred".