22000221112021 has 16 divisors (see below), whose sum is σ = 22308225795648. Its totient is φ = 21694172169600.

The previous prime is 22000221112013. The next prime is 22000221112057. The reversal of 22000221112021 is 12021112200022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22000221112021 - 2³ = 22000221112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22000221111986 and 22000221112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000221412021) 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, 79166806 + ... + 79444216.

It is an arithmetic number, because the mean of its divisors is an integer number (1394264112228).

Almost surely, 2^{22000221112021} is an apocalyptic number.

It is an amenable number.

22000221112021 is a deficient number, since it is larger than the sum of its proper divisors (308004683627).

22000221112021 is a wasteful number, since it uses less digits than its factorization.

22000221112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280932.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22000221112021 its reverse (12021112200022), we get a palindrome (34021333312043).

The spelling of 22000221112021 in words is "twenty-two trillion, two hundred twenty-one million, one hundred twelve thousand, twenty-one".