21223030022 has 16 divisors (see below), whose sum is σ = 32746824672. Its totient is φ = 10308332160.

The previous prime is 21223029983. The next prime is 21223030033. The reversal of 21223030022 is 22003032212.

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, 180563 + ... + 273950.

It is an arithmetic number, because the mean of its divisors is an integer number (2046676542).

Almost surely, 2^21223030022 is an apocalyptic number.

21223030022 is a deficient number, since it is larger than the sum of its proper divisors (11523794650).

21223030022 is a wasteful number, since it uses less digits than its factorization.

21223030022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455183.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 21223030022 its reverse (22003032212), we get a palindrome (43226062234).

The spelling of 21223030022 in words is "twenty-one billion, two hundred twenty-three million, thirty thousand, twenty-two".