210000222137 has 2 divisors, whose sum is σ = 210000222138. Its totient is φ = 210000222136.

The previous prime is 210000222013. The next prime is 210000222163. The reversal of 210000222137 is 731222000012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113086928656 + 96913293481 = 336284^2 + 311309^2 .

It is a cyclic number.

It is not a de Polignac number, because 210000222137 - 2²² = 209996027833 is a prime.

It is not a weakly prime, because it can be changed into another prime (210000222167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000111068 + 105000111069.

It is an arithmetic number, because the mean of its divisors is an integer number (105000111069).

Almost surely, 2^210000222137 is an apocalyptic number.

It is an amenable number.

210000222137 is a deficient number, since it is larger than the sum of its proper divisors (1).

210000222137 is an equidigital number, since it uses as much as digits as its factorization.

210000222137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 210000222137 its reverse (731222000012), we get a palindrome (941222222149).

The spelling of 210000222137 in words is "two hundred ten billion, two hundred twenty-two thousand, one hundred thirty-seven".