21022413226 has 16 divisors (see below), whose sum is σ = 32336962560. Its totient is φ = 10243969120.

The previous prime is 21022413211. The next prime is 21022413239. The reversal of 21022413226 is 62231422012.

It is a self number, because there is not a number n which added to its sum of digits gives 21022413226.

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, 57706 + ... + 213013.

It is an arithmetic number, because the mean of its divisors is an integer number (2021060160).

Almost surely, 2^21022413226 is an apocalyptic number.

21022413226 is a deficient number, since it is larger than the sum of its proper divisors (11314549334).

21022413226 is a wasteful number, since it uses less digits than its factorization.

21022413226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271709.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21022413226 its reverse (62231422012), we get a palindrome (83253835238).

The spelling of 21022413226 in words is "twenty-one billion, twenty-two million, four hundred thirteen thousand, two hundred twenty-six".