122919723901 has 32 divisors (see below), whose sum is σ = 140464447200. Its totient is φ = 106765102080.

The previous prime is 122919723889. The next prime is 122919723947. The reversal of 122919723901 is 109327919221.

It can be written as a sum of positive squares in 16 ways, for example, as 22984076025 + 99935647876 = 151605^2 + 316126^2 .

It is not a de Polignac number, because 122919723901 - 2¹¹ = 122919721853 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 (122919723961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2482155 + ... + 2531191.

It is an arithmetic number, because the mean of its divisors is an integer number (4389513975).

Almost surely, 2^122919723901 is an apocalyptic number.

It is an amenable number.

122919723901 is a deficient number, since it is larger than the sum of its proper divisors (17544723299).

122919723901 is a wasteful number, since it uses less digits than its factorization.

122919723901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49249.

The product of its (nonzero) digits is 122472, while the sum is 46.

The spelling of 122919723901 in words is "one hundred twenty-two billion, nine hundred nineteen million, seven hundred twenty-three thousand, nine hundred one".