122001961311 has 24 divisors (see below), whose sum is σ = 178030319376. Its totient is φ = 80501990400.

The previous prime is 122001961297. The next prime is 122001961339. The reversal of 122001961311 is 113169100221.

It is a happy number.

122001961311 is a `hidden beast` number, since 1 + 2 + 20 + 0 + 19 + 613 + 11 = 666.

It is not a de Polignac number, because 122001961311 - 2⁷ = 122001961183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001961351) 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, 2853951 + ... + 2896383.

It is an arithmetic number, because the mean of its divisors is an integer number (7417929974).

Almost surely, 2^122001961311 is an apocalyptic number.

122001961311 is a deficient number, since it is larger than the sum of its proper divisors (56028358065).

122001961311 is a wasteful number, since it uses less digits than its factorization.

122001961311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45703 (or 45700 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The spelling of 122001961311 in words is "one hundred twenty-two billion, one million, nine hundred sixty-one thousand, three hundred eleven".