121570772601 has 16 divisors (see below), whose sum is σ = 167061945600. Its totient is φ = 78595031808.

The previous prime is 121570772579. The next prime is 121570772621. The reversal of 121570772601 is 106277075121.

It is a happy number.

It is not a de Polignac number, because 121570772601 - 2⁷ = 121570772473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121570772601.

It is not an unprimeable number, because it can be changed into a prime (121570772621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3939696 + ... + 3970433.

It is an arithmetic number, because the mean of its divisors is an integer number (10441371600).

Almost surely, 2^121570772601 is an apocalyptic number.

It is an amenable number.

121570772601 is a deficient number, since it is larger than the sum of its proper divisors (45491172999).

121570772601 is a wasteful number, since it uses less digits than its factorization.

121570772601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910288.

The product of its (nonzero) digits is 41160, while the sum is 39.

The spelling of 121570772601 in words is "one hundred twenty-one billion, five hundred seventy million, seven hundred seventy-two thousand, six hundred one".