121455350051 has 32 divisors (see below), whose sum is σ = 147519792000. Its totient is φ = 97779870720.

The previous prime is 121455350033. The next prime is 121455350057. The reversal of 121455350051 is 150053554121.

It is not a de Polignac number, because 121455350051 - 2⁶ = 121455349987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121455350057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2883821 + ... + 2925633.

It is an arithmetic number, because the mean of its divisors is an integer number (4609993500).

Almost surely, 2^121455350051 is an apocalyptic number.

121455350051 is a deficient number, since it is larger than the sum of its proper divisors (26064441949).

121455350051 is a wasteful number, since it uses less digits than its factorization.

121455350051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42239.

The product of its (nonzero) digits is 15000, while the sum is 32.

The spelling of 121455350051 in words is "one hundred twenty-one billion, four hundred fifty-five million, three hundred fifty thousand, fifty-one".