120421911818280 has 64 divisors (see below), whose sum is σ = 364462777402560. Its totient is φ = 31828328311808.

The previous prime is 120421911818261. The next prime is 120421911818293. The reversal of 120421911818280 is 82818119124021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4440322422 + ... + 4440349541.

It is an arithmetic number, because the mean of its divisors is an integer number (5694730896915).

Almost surely, 2^{120421911818280} is an apocalyptic number.

120421911818280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120421911818280 is an abundant number, since it is smaller than the sum of its proper divisors (244040865584280).

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

120421911818280 is a wasteful number, since it uses less digits than its factorization.

120421911818280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880672090 (or 8880672086 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 48.

The spelling of 120421911818280 in words is "one hundred twenty trillion, four hundred twenty-one billion, nine hundred eleven million, eight hundred eighteen thousand, two hundred eighty".