122147747252 has 24 divisors (see below), whose sum is σ = 216085370760. Its totient is φ = 60412244480.

The previous prime is 122147747243. The next prime is 122147747263. The reversal of 122147747252 is 252747741221.

It can be written as a sum of positive squares in 4 ways, for example, as 33155311396 + 88992435856 = 182086^2 + 298316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242627 + ... + 550602.

It is an arithmetic number, because the mean of its divisors is an integer number (9003557115).

Almost surely, 2^122147747252 is an apocalyptic number.

It is an amenable number.

122147747252 is a deficient number, since it is larger than the sum of its proper divisors (93937623508).

122147747252 is a wasteful number, since it uses less digits than its factorization.

122147747252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793651 (or 793649 counting only the distinct ones).

The product of its digits is 439040, while the sum is 44.

The spelling of 122147747252 in words is "one hundred twenty-two billion, one hundred forty-seven million, seven hundred forty-seven thousand, two hundred fifty-two".