122420351012520 has 192 divisors, whose sum is σ = 424930144968000. Its totient is φ = 28115678638080.

The previous prime is 122420351012513. The next prime is 122420351012537. The reversal of 122420351012520 is 25210153024221.

122420351012520 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 221596585 + ... + 222148344.

It is an arithmetic number, because the mean of its divisors is an integer number (2213177838375).

Almost surely, 2^{122420351012520} is an apocalyptic number.

122420351012520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122420351012520 is an abundant number, since it is smaller than the sum of its proper divisors (302509793955480).

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

122420351012520 is a wasteful number, since it uses less digits than its factorization.

122420351012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443744984 (or 443744969 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 122420351012520 in words is "one hundred twenty-two trillion, four hundred twenty billion, three hundred fifty-one million, twelve thousand, five hundred twenty".