121552551722 has 16 divisors (see below), whose sum is σ = 208839902400. Its totient is φ = 51977925888.

The previous prime is 121552551709. The next prime is 121552551749. The reversal of 121552551722 is 227155255121.

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 7 ways as a sum of consecutive naturals, for example, 9662228 + ... + 9674799.

It is an arithmetic number, because the mean of its divisors is an integer number (13052493900).

Almost surely, 2^121552551722 is an apocalyptic number.

121552551722 is a deficient number, since it is larger than the sum of its proper divisors (87287350678).

121552551722 is a wasteful number, since it uses less digits than its factorization.

121552551722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19337485.

The product of its digits is 70000, while the sum is 38.

The spelling of 121552551722 in words is "one hundred twenty-one billion, five hundred fifty-two million, five hundred fifty-one thousand, seven hundred twenty-two".