12121860597 has 128 divisors (see below), whose sum is σ = 22140518400. Its totient is φ = 5708102400.

The previous prime is 12121860589. The next prime is 12121860599. The reversal of 12121860597 is 79506812121.

It is not a de Polignac number, because 12121860597 - 2³ = 12121860589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121860599) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 16673448 + ... + 16674174.

It is an arithmetic number, because the mean of its divisors is an integer number (172972800).

Almost surely, 2^12121860597 is an apocalyptic number.

It is an amenable number.

12121860597 is a deficient number, since it is larger than the sum of its proper divisors (10018657803).

12121860597 is a wasteful number, since it uses less digits than its factorization.

12121860597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 60480, while the sum is 42.

The spelling of 12121860597 in words is "twelve billion, one hundred twenty-one million, eight hundred sixty thousand, five hundred ninety-seven".