122012194637 has 2 divisors, whose sum is σ = 122012194638. Its totient is φ = 122012194636.

The previous prime is 122012194613. The next prime is 122012194679. The reversal of 122012194637 is 736491210221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97605631561 + 24406563076 = 312419^2 + 156226^2 .

It is a cyclic number.

It is not a de Polignac number, because 122012194637 - 2³⁶ = 53292717901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122012194637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012194687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006097318 + 61006097319.

It is an arithmetic number, because the mean of its divisors is an integer number (61006097319).

Almost surely, 2^122012194637 is an apocalyptic number.

It is an amenable number.

122012194637 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012194637 is an equidigital number, since it uses as much as digits as its factorization.

122012194637 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 122012194637 in words is "one hundred twenty-two billion, twelve million, one hundred ninety-four thousand, six hundred thirty-seven".