122157337751 has 4 divisors (see below), whose sum is σ = 122158523400. Its totient is φ = 122156152104.

The previous prime is 122157337747. The next prime is 122157337759. The reversal of 122157337751 is 157733751221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 157733751221 = 87833 ⋅1795837.

It is a cyclic number.

It is not a de Polignac number, because 122157337751 - 2² = 122157337747 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122157337759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421841 + ... + 649818.

It is an arithmetic number, because the mean of its divisors is an integer number (30539630850).

Almost surely, 2^122157337751 is an apocalyptic number.

122157337751 is a deficient number, since it is larger than the sum of its proper divisors (1185649).

122157337751 is a wasteful number, since it uses less digits than its factorization.

122157337751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185648.

The product of its digits is 308700, while the sum is 44.

The spelling of 122157337751 in words is "one hundred twenty-two billion, one hundred fifty-seven million, three hundred thirty-seven thousand, seven hundred fifty-one".