122554551215020 has 24 divisors (see below), whose sum is σ = 259391050136064. Its totient is φ = 48635821898496.

The previous prime is 122554551214981. The next prime is 122554551215081. The reversal of 122554551215020 is 20512155455221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24124909117 + ... + 24124914196.

It is an arithmetic number, because the mean of its divisors is an integer number (10807960422336).

Almost surely, 2^{122554551215020} is an apocalyptic number.

122554551215020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122554551215020 is an abundant number, since it is smaller than the sum of its proper divisors (136836498921044).

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

122554551215020 is a wasteful number, since it uses less digits than its factorization.

122554551215020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48249823449 (or 48249823447 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 40.

The spelling of 122554551215020 in words is "one hundred twenty-two trillion, five hundred fifty-four billion, five hundred fifty-one million, two hundred fifteen thousand, twenty".