12212025636 has 24 divisors (see below), whose sum is σ = 28553250880. Its totient is φ = 4062314592.

The previous prime is 12212025593. The next prime is 12212025673. The reversal of 12212025636 is 63652021221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1038991 + ... + 1050678.

Almost surely, 2^12212025636 is an apocalyptic number.

It is an amenable number.

12212025636 is an abundant number, since it is smaller than the sum of its proper divisors (16341225244).

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

12212025636 is a wasteful number, since it uses less digits than its factorization.

12212025636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090163 (or 2090161 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 12212025636 its reverse (63652021221), we get a palindrome (75864046857).

The spelling of 12212025636 in words is "twelve billion, two hundred twelve million, twenty-five thousand, six hundred thirty-six".