121052255144 has 16 divisors (see below), whose sum is σ = 236841369120. Its totient is φ = 57894556720.

The previous prime is 121052255081. The next prime is 121052255153. The reversal of 121052255144 is 441552250121.

It is a self number, because there is not a number n which added to its sum of digits gives 121052255144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328946162 + ... + 328946529.

It is an arithmetic number, because the mean of its divisors is an integer number (14802585570).

Almost surely, 2^121052255144 is an apocalyptic number.

It is an amenable number.

121052255144 is a deficient number, since it is larger than the sum of its proper divisors (115789113976).

121052255144 is a wasteful number, since it uses less digits than its factorization.

121052255144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657892720 (or 657892716 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 121052255144 in words is "one hundred twenty-one billion, fifty-two million, two hundred fifty-five thousand, one hundred forty-four".