221422047335226 has 12 divisors (see below), whose sum is σ = 479747769226362. Its totient is φ = 73807349111736.

The previous prime is 221422047335221. The next prime is 221422047335239. The reversal of 221422047335226 is 622533740224122.

221422047335226 is a `hidden beast` number, since 2 + 2 + 1 + 4 + 2 + 204 + 73 + 352 + 26 = 666.

221422047335226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 130947993449001 + 90474053886225 = 11443251^2 + 9511785^2 .

It is a super-2 number, since 2×221422047335226² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221422047335221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6150612425961 + ... + 6150612425996.

Almost surely, 2^{221422047335226} is an apocalyptic number.

221422047335226 is an abundant number, since it is smaller than the sum of its proper divisors (258325721891136).

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

221422047335226 is a wasteful number, since it uses less digits than its factorization.

221422047335226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12301224851965 (or 12301224851962 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 45.

Adding to 221422047335226 its reverse (622533740224122), we get a palindrome (843955787559348).

The spelling of 221422047335226 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred thirty-five thousand, two hundred twenty-six".