22111102202021 has 16 divisors (see below), whose sum is σ = 26647068864000. Its totient is φ = 17922988484208.

The previous prime is 22111102202003. The next prime is 22111102202023. The reversal of 22111102202021 is 12020220111122.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22111102202021 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 (22111102202023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147570671 + ... + 147720428.

It is an arithmetic number, because the mean of its divisors is an integer number (1665441804000).

Almost surely, 2^{22111102202021} is an apocalyptic number.

It is an amenable number.

22111102202021 is a deficient number, since it is larger than the sum of its proper divisors (4535966661979).

22111102202021 is a wasteful number, since it uses less digits than its factorization.

22111102202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295291688.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111102202021 its reverse (12020220111122), we get a palindrome (34131322313143).

The spelling of 22111102202021 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, two hundred two thousand, twenty-one".