2112210023251 has 2 divisors, whose sum is σ = 2112210023252. Its totient is φ = 2112210023250.

The previous prime is 2112210023221. The next prime is 2112210023303. The reversal of 2112210023251 is 1523200122112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112210023251 - 2³⁵ = 2077850284883 is a prime.

It is a super-2 number, since 2×2112210023251² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112210023201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056105011625 + 1056105011626.

It is an arithmetic number, because the mean of its divisors is an integer number (1056105011626).

Almost surely, 2^{2112210023251} is an apocalyptic number.

2112210023251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112210023251 is an equidigital number, since it uses as much as digits as its factorization.

2112210023251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 2112210023251 its reverse (1523200122112), we get a palindrome (3635410145363).

The spelling of 2112210023251 in words is "two trillion, one hundred twelve billion, two hundred ten million, twenty-three thousand, two hundred fifty-one".