22021200022021 has 8 divisors (see below), whose sum is σ = 22180851623840. Its totient is φ = 21861565930512.

The previous prime is 22021200021943. The next prime is 22021200022033. The reversal of 22021200022021 is 12022000212022.

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

It is a cyclic number.

It is not a de Polignac number, because 22021200022021 - 2²⁵ = 22021166467589 is a prime.

It is a super-3 number, since 3×22021200022021³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021200021986 and 22021200022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021200028021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847955 + ... + 6888928.

It is an arithmetic number, because the mean of its divisors is an integer number (2772606452980).

Almost surely, 2^{22021200022021} is an apocalyptic number.

It is an amenable number.

22021200022021 is a deficient number, since it is larger than the sum of its proper divisors (159651601819).

22021200022021 is a wasteful number, since it uses less digits than its factorization.

22021200022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8755155.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22021200022021 its reverse (12022000212022), we get a palindrome (34043200234043).

The spelling of 22021200022021 in words is "twenty-two trillion, twenty-one billion, two hundred million, twenty-two thousand, twenty-one".