121167996804 has 18 divisors (see below), whose sum is σ = 306285769790. Its totient is φ = 40389332256.

The previous prime is 121167996787. The next prime is 121167996809. The reversal of 121167996804 is 408699761121.

It can be written as a sum of positive squares in only one way, i.e., 120937017600 + 230979204 = 347760^2 + 15198^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (121167996809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1682888809 + ... + 1682888880.

Almost surely, 2^121167996804 is an apocalyptic number.

It is an amenable number.

121167996804 is an abundant number, since it is smaller than the sum of its proper divisors (185117772986).

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

121167996804 is a wasteful number, since it uses less digits than its factorization.

121167996804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365777699 (or 3365777694 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 121167996804 in words is "one hundred twenty-one billion, one hundred sixty-seven million, nine hundred ninety-six thousand, eight hundred four".