1018120417722 has 12 divisors (see below), whose sum is σ = 2205927571770. Its totient is φ = 339373472568.

The previous prime is 1018120417697. The next prime is 1018120417841. The reversal of 1018120417722 is 2277140218101.

It can be written as a sum of positive squares in only one way, i.e., 1006006994001 + 12113423721 = 1002999^2 + 110061^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28281122697 + ... + 28281122732.

Almost surely, 2^{1018120417722} is an apocalyptic number.

1018120417722 is an abundant number, since it is smaller than the sum of its proper divisors (1187807154048).

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

1018120417722 is a wasteful number, since it uses less digits than its factorization.

1018120417722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56562245437 (or 56562245434 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 36.

The spelling of 1018120417722 in words is "one trillion, eighteen billion, one hundred twenty million, four hundred seventeen thousand, seven hundred twenty-two".