22022021220021 has 48 divisors (see below), whose sum is σ = 33641358266880. Its totient is φ = 13859252928000.

The previous prime is 22022021220007. The next prime is 22022021220053. The reversal of 22022021220021 is 12002212022022.

22022021220021 is a `hidden beast` number, since 220 + 2 + 202 + 1 + 220 + 0 + 21 = 666.

It is not a de Polignac number, because 22022021220021 - 2¹⁵ = 22022021187253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22022021219976 and 22022021220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22022021220071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82444801 + ... + 82711481.

It is an arithmetic number, because the mean of its divisors is an integer number (700861630560).

Almost surely, 2^{22022021220021} is an apocalyptic number.

It is an amenable number.

22022021220021 is a deficient number, since it is larger than the sum of its proper divisors (11619337046859).

22022021220021 is a wasteful number, since it uses less digits than its factorization.

22022021220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273978 (or 273975 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22022021220021 its reverse (12002212022022), we get a palindrome (34024233242043).

The spelling of 22022021220021 in words is "twenty-two trillion, twenty-two billion, twenty-one million, two hundred twenty thousand, twenty-one".