50121517220000 has 480 divisors, whose sum is σ = 130482766149120. Its totient is φ = 18914846720000.

The previous prime is 50121517219997. The next prime is 50121517220023. The reversal of 50121517220000 is 2271512105.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24016058957 + ... + 24016061043.

It is an arithmetic number, because the mean of its divisors is an integer number (271839096144).

Almost surely, 2^{50121517220000} is an apocalyptic number.

50121517220000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50121517220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65241383074560).

50121517220000 is an abundant number, since it is smaller than the sum of its proper divisors (80361248929120).

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

50121517220000 is a wasteful number, since it uses less digits than its factorization.

50121517220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3074 (or 3051 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

Adding to 50121517220000 its reverse (2271512105), we get a palindrome (50123788732105).

The spelling of 50121517220000 in words is "fifty trillion, one hundred twenty-one billion, five hundred seventeen million, two hundred twenty thousand".