21214420022 has 16 divisors (see below), whose sum is σ = 31989399552. Its totient is φ = 10551405480.

The previous prime is 21214420009. The next prime is 21214420049. The reversal of 21214420022 is 22002441212.

It is a junction number, because it is equal to n+sod(n) for n = 21214419976 and 21214420003.

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, 334283 + ... + 392649.

It is an arithmetic number, because the mean of its divisors is an integer number (1999337472).

Almost surely, 2^21214420022 is an apocalyptic number.

21214420022 is a deficient number, since it is larger than the sum of its proper divisors (10774979530).

21214420022 is a wasteful number, since it uses less digits than its factorization.

21214420022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59323.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 21214420022 its reverse (22002441212), we get a palindrome (43216861234).

The spelling of 21214420022 in words is "twenty-one billion, two hundred fourteen million, four hundred twenty thousand, twenty-two".