12221636701 has 16 divisors (see below), whose sum is σ = 12474408960. Its totient is φ = 11971895040.

The previous prime is 12221636683. The next prime is 12221636711. The reversal of 12221636701 is 10763612221.

It is a cyclic number.

It is not a de Polignac number, because 12221636701 - 2²⁹ = 11684765789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221636711) 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, 9554980 + ... + 9556258.

It is an arithmetic number, because the mean of its divisors is an integer number (779650560).

Almost surely, 2^12221636701 is an apocalyptic number.

It is an amenable number.

12221636701 is a deficient number, since it is larger than the sum of its proper divisors (252772259).

12221636701 is a wasteful number, since it uses less digits than its factorization.

12221636701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 12221636701 in words is "twelve billion, two hundred twenty-one million, six hundred thirty-six thousand, seven hundred one".