21214424022 has 16 divisors (see below), whose sum is σ = 46286016192. Its totient is φ = 6428613320.

The previous prime is 21214424017. The next prime is 21214424039. The reversal of 21214424022 is 22042441212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21214423983 and 21214424001.

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, 160715268 + ... + 160715399.

It is an arithmetic number, because the mean of its divisors is an integer number (2892876012).

Almost surely, 2^21214424022 is an apocalyptic number.

21214424022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21214424022 is an abundant number, since it is smaller than the sum of its proper divisors (25071592170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21214424022 is a wasteful number, since it uses less digits than its factorization.

21214424022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321430683.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 21214424022 its reverse (22042441212), we get a palindrome (43256865234).

The spelling of 21214424022 in words is "twenty-one billion, two hundred fourteen million, four hundred twenty-four thousand, twenty-two".