221446226 has 16 divisors (see below), whose sum is σ = 338133120. Its totient is φ = 108740880.

The previous prime is 221446219. The next prime is 221446249. The reversal of 221446226 is 622644122.

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, 125885 + ... + 127631.

It is an arithmetic number, because the mean of its divisors is an integer number (21133320).

Almost surely, 2^221446226 is an apocalyptic number.

221446226 is a deficient number, since it is larger than the sum of its proper divisors (116686894).

221446226 is a wasteful number, since it uses less digits than its factorization.

221446226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849.

The product of its digits is 9216, while the sum is 29.

The square root of 221446226 is about 14881.0693836162. The cubic root of 221446226 is about 605.0010026621.

The spelling of 221446226 in words is "two hundred twenty-one million, four hundred forty-six thousand, two hundred twenty-six".