21222233662 has 32 divisors (see below), whose sum is σ = 38540593152. Its totient is φ = 8555881344.

The previous prime is 21222233579. The next prime is 21222233707. The reversal of 21222233662 is 26633222212.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 469383 + ... + 512605.

It is an arithmetic number, because the mean of its divisors is an integer number (1204393536).

Almost surely, 2^21222233662 is an apocalyptic number.

21222233662 is a deficient number, since it is larger than the sum of its proper divisors (17318359490).

21222233662 is a wasteful number, since it uses less digits than its factorization.

21222233662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45312.

The product of its digits is 20736, while the sum is 31.

Adding to 21222233662 its reverse (26633222212), we get a palindrome (47855455874).

The spelling of 21222233662 in words is "twenty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, six hundred sixty-two".