210122131 has 2 divisors, whose sum is σ = 210122132. Its totient is φ = 210122130.

The previous prime is 210122119. The next prime is 210122141. The reversal of 210122131 is 131221012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210122131 - 2⁹ = 210121619 is a prime.

It is a super-2 number, since 2×210122131² = 88302619871962322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210122141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105061065 + 105061066.

It is an arithmetic number, because the mean of its divisors is an integer number (105061066).

Almost surely, 2^210122131 is an apocalyptic number.

210122131 is a deficient number, since it is larger than the sum of its proper divisors (1).

210122131 is an equidigital number, since it uses as much as digits as its factorization.

210122131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 210122131 is about 14495.5900535301. The cubic root of 210122131 is about 594.5074010617.

Adding to 210122131 its reverse (131221012), we get a palindrome (341343143).

The spelling of 210122131 in words is "two hundred ten million, one hundred twenty-two thousand, one hundred thirty-one".