12220202100021 has 8 divisors (see below), whose sum is σ = 16733970443424. Its totient is φ = 7926617578320.

The previous prime is 12220202099951. The next prime is 12220202100023. The reversal of 12220202100021 is 12000120202221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12220202100021 - 2¹³ = 12220202091829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220202100023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55045955295 + ... + 55045955516.

It is an arithmetic number, because the mean of its divisors is an integer number (2091746305428).

Almost surely, 2^{12220202100021} is an apocalyptic number.

It is an amenable number.

12220202100021 is a deficient number, since it is larger than the sum of its proper divisors (4513768343403).

12220202100021 is a wasteful number, since it uses less digits than its factorization.

12220202100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110091910851.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12220202100021 its reverse (12000120202221), we get a palindrome (24220322302242).

The spelling of 12220202100021 in words is "twelve trillion, two hundred twenty billion, two hundred two million, one hundred thousand, twenty-one".