12102121964 has 12 divisors (see below), whose sum is σ = 21226959600. Its totient is φ = 6037276368.

The previous prime is 12102121963. The next prime is 12102122161. The reversal of 12102121964 is 46912120121.

It is a super-2 number, since 2×12102121964² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102121963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3444179 + ... + 3447690.

It is an arithmetic number, because the mean of its divisors is an integer number (1768913300).

Almost surely, 2^12102121964 is an apocalyptic number.

It is an amenable number.

12102121964 is a deficient number, since it is larger than the sum of its proper divisors (9124837636).

12102121964 is a wasteful number, since it uses less digits than its factorization.

12102121964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892312 (or 6892310 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 12102121964 in words is "twelve billion, one hundred two million, one hundred twenty-one thousand, nine hundred sixty-four".