32121212986 has 16 divisors (see below), whose sum is σ = 50284362600. Its totient is φ = 15369561088.

The previous prime is 32121212891. The next prime is 32121212987. The reversal of 32121212986 is 68921212123.

It can be written as a sum of positive squares in 4 ways, for example, as 26642400625 + 5478812361 = 163225^2 + 74019^2 .

It is not an unprimeable number, because it can be changed into a prime (32121212987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2443951 + ... + 2457058.

Almost surely, 2^32121212986 is an apocalyptic number.

32121212986 is a deficient number, since it is larger than the sum of its proper divisors (18163149614).

32121212986 is a wasteful number, since it uses less digits than its factorization.

32121212986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901153.

The product of its digits is 20736, while the sum is 37.

The spelling of 32121212986 in words is "thirty-two billion, one hundred twenty-one million, two hundred twelve thousand, nine hundred eighty-six".