21476522223226 has 16 divisors (see below), whose sum is σ = 36822740270400. Its totient is φ = 9202762552320.

The previous prime is 21476522223223. The next prime is 21476522223259. The reversal of 21476522223226 is 62232222567412.

It is a super-2 number, since 2×21476522223226² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21476522223223) 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, 121680135 + ... + 121856506.

It is an arithmetic number, because the mean of its divisors is an integer number (2301421266900).

Almost surely, 2^{21476522223226} is an apocalyptic number.

21476522223226 is a deficient number, since it is larger than the sum of its proper divisors (15346218047174).

21476522223226 is a wasteful number, since it uses less digits than its factorization.

21476522223226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243542949.

The product of its digits is 1935360, while the sum is 46.

The spelling of 21476522223226 in words is "twenty-one trillion, four hundred seventy-six billion, five hundred twenty-two million, two hundred twenty-three thousand, two hundred twenty-six".