21320430022 has 16 divisors (see below), whose sum is σ = 32752246032. Its totient is φ = 10403436960.

The previous prime is 21320429993. The next prime is 21320430023. The reversal of 21320430022 is 22003402312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320430023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3393 + ... + 206524.

It is an arithmetic number, because the mean of its divisors is an integer number (2047015377).

Almost surely, 2^21320430022 is an apocalyptic number.

21320430022 is a deficient number, since it is larger than the sum of its proper divisors (11431816010).

21320430022 is a wasteful number, since it uses less digits than its factorization.

21320430022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211143.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21320430022 its reverse (22003402312), we get a palindrome (43323832334).

The spelling of 21320430022 in words is "twenty-one billion, three hundred twenty million, four hundred thirty thousand, twenty-two".