122394521253 has 8 divisors (see below), whose sum is σ = 168456975616. Its totient is φ = 78964207200.

The previous prime is 122394521219. The next prime is 122394521279. The reversal of 122394521253 is 352125493221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122394521253 - 2⁹ = 122394520741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122394521213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 658034968 + ... + 658035153.

It is an arithmetic number, because the mean of its divisors is an integer number (21057121952).

Almost surely, 2^122394521253 is an apocalyptic number.

It is an amenable number.

122394521253 is a deficient number, since it is larger than the sum of its proper divisors (46062454363).

122394521253 is a wasteful number, since it uses less digits than its factorization.

122394521253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316070155.

The product of its digits is 129600, while the sum is 39.

The spelling of 122394521253 in words is "one hundred twenty-two billion, three hundred ninety-four million, five hundred twenty-one thousand, two hundred fifty-three".