210122310231 has 24 divisors (see below), whose sum is σ = 306044234496. Its totient is φ = 138913416720.

The previous prime is 210122310199. The next prime is 210122310247. The reversal of 210122310231 is 132013221012.

210122310231 is a `hidden beast` number, since 2 + 1 + 0 + 122 + 310 + 231 = 666.

It is not a de Polignac number, because 210122310231 - 2⁵ = 210122310199 is a prime.

It is a super-2 number, since 2×210122310231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210122310731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1615096 + ... + 1740338.

It is an arithmetic number, because the mean of its divisors is an integer number (12751843104).

Almost surely, 2^210122310231 is an apocalyptic number.

210122310231 is a deficient number, since it is larger than the sum of its proper divisors (95921924265).

210122310231 is a wasteful number, since it uses less digits than its factorization.

210122310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126803 (or 126800 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 210122310231 its reverse (132013221012), we get a palindrome (342135531243).

The spelling of 210122310231 in words is "two hundred ten billion, one hundred twenty-two million, three hundred ten thousand, two hundred thirty-one".