22013266221 has 24 divisors (see below), whose sum is σ = 35439318720. Its totient is φ = 13085283456.

The previous prime is 22013266211. The next prime is 22013266241. The reversal of 22013266221 is 12266231022.

It is a happy number.

22013266221 is a `hidden beast` number, since 2 + 2 + 0 + 1 + 32 + 6 + 622 + 1 = 666.

It is not a de Polignac number, because 22013266221 - 2¹⁷ = 22013135149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22013266211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3783345 + ... + 3789158.

It is an arithmetic number, because the mean of its divisors is an integer number (1476638280).

Almost surely, 2^22013266221 is an apocalyptic number.

It is an amenable number.

22013266221 is a deficient number, since it is larger than the sum of its proper divisors (13426052499).

22013266221 is a wasteful number, since it uses less digits than its factorization.

22013266221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572545 (or 7572542 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 22013266221 its reverse (12266231022), we get a palindrome (34279497243).

The spelling of 22013266221 in words is "twenty-two billion, thirteen million, two hundred sixty-six thousand, two hundred twenty-one".