22421533323021 has 16 divisors (see below), whose sum is σ = 34169349333504. Its totient is φ = 12811103511984.

The previous prime is 22421533322941. The next prime is 22421533323031. The reversal of 22421533323021 is 12032333512422.

It is not a de Polignac number, because 22421533323021 - 2¹⁴ = 22421533306637 is a prime.

It is a super-2 number, since 2×22421533323021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22421533323031) 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 15 ways as a sum of consecutive naturals, for example, 49822495 + ... + 50270508.

It is an arithmetic number, because the mean of its divisors is an integer number (2135584333344).

Almost surely, 2^{22421533323021} is an apocalyptic number.

22421533323021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22421533323021 is a deficient number, since it is larger than the sum of its proper divisors (11747816010483).

22421533323021 is a wasteful number, since it uses less digits than its factorization.

22421533323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100103680.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 22421533323021 its reverse (12032333512422), we get a palindrome (34453866835443).

The spelling of 22421533323021 in words is "twenty-two trillion, four hundred twenty-one billion, five hundred thirty-three million, three hundred twenty-three thousand, twenty-one".