121555501054 has 8 divisors (see below), whose sum is σ = 196358886360. Its totient is φ = 56102538936.

The previous prime is 121555501049. The next prime is 121555501063. The reversal of 121555501054 is 450105555121.

121555501054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121555501054² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2337605764 + ... + 2337605815.

It is an arithmetic number, because the mean of its divisors is an integer number (24544860795).

Almost surely, 2^121555501054 is an apocalyptic number.

121555501054 is a deficient number, since it is larger than the sum of its proper divisors (74803385306).

121555501054 is a wasteful number, since it uses less digits than its factorization.

121555501054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675211594.

The product of its (nonzero) digits is 25000, while the sum is 34.

The spelling of 121555501054 in words is "one hundred twenty-one billion, five hundred fifty-five million, five hundred one thousand, fifty-four".