122554231120520 has 32 divisors (see below), whose sum is σ = 275747831971200. Its totient is φ = 49021548101568.

The previous prime is 122554231120481. The next prime is 122554231120523. The reversal of 122554231120520 is 25021132455221.

It is not an unprimeable number, because it can be changed into a prime (122554231120523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9804257 + ... + 18472463.

It is an arithmetic number, because the mean of its divisors is an integer number (8617119749100).

Almost surely, 2^{122554231120520} is an apocalyptic number.

122554231120520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122554231120520 is an abundant number, since it is smaller than the sum of its proper divisors (153193600850680).

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

122554231120520 is a wasteful number, since it uses less digits than its factorization.

122554231120520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021677 (or 9021673 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 122554231120520 its reverse (25021132455221), we get a palindrome (147575363575741).

The spelling of 122554231120520 in words is "one hundred twenty-two trillion, five hundred fifty-four billion, two hundred thirty-one million, one hundred twenty thousand, five hundred twenty".