2137102021 has 8 divisors (see below), whose sum is σ = 2190868064. Its totient is φ = 2083520880.

The previous prime is 2137102001. The next prime is 2137102039. The reversal of 2137102021 is 1202017312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2137102021 - 2²¹ = 2135004869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2137102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2137102001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22671 + ... + 69196.

It is an arithmetic number, because the mean of its divisors is an integer number (273858508).

Almost surely, 2^2137102021 is an apocalyptic number.

It is an amenable number.

2137102021 is a deficient number, since it is larger than the sum of its proper divisors (53766043).

2137102021 is an equidigital number, since it uses as much as digits as its factorization.

2137102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92451.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2137102021 is about 46228.8007739764. The cubic root of 2137102021 is about 1288.0767810165.

Adding to 2137102021 its reverse (1202017312), we get a palindrome (3339119333).

The spelling of 2137102021 in words is "two billion, one hundred thirty-seven million, one hundred two thousand, twenty-one".