21996667022 has 16 divisors (see below), whose sum is σ = 36344011392. Its totient is φ = 9901411320.

The previous prime is 21996667001. The next prime is 21996667037. The reversal of 21996667022 is 22076669912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4851368 + ... + 4855899.

It is an arithmetic number, because the mean of its divisors is an integer number (2271500712).

Almost surely, 2^21996667022 is an apocalyptic number.

21996667022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21996667022 is a deficient number, since it is larger than the sum of its proper divisors (14347344370).

21996667022 is a wasteful number, since it uses less digits than its factorization.

21996667022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707383.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 21996667022 in words is "twenty-one billion, nine hundred ninety-six million, six hundred sixty-seven thousand, twenty-two".