122436531216 has 60 divisors (see below), whose sum is σ = 343185392368. Its totient is φ = 40748674752.

The previous prime is 122436531209. The next prime is 122436531223. The reversal of 122436531216 is 612135634221.

122436531216 is a `hidden beast` number, since 1 + 2 + 2 + 436 + 5 + 3 + 1 + 216 = 666.

It is an interprime number because it is at equal distance from previous prime (122436531209) and next prime (122436531223).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 568570 + ... + 753753.

Almost surely, 2^122436531216 is an apocalyptic number.

122436531216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

122436531216 is an abundant number, since it is smaller than the sum of its proper divisors (220748861152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122436531216 is a wasteful number, since it uses less digits than its factorization.

122436531216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322980 (or 1322971 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 122436531216 in words is "one hundred twenty-two billion, four hundred thirty-six million, five hundred thirty-one thousand, two hundred sixteen".