226982221 has 4 divisors (see below), whose sum is σ = 227253600. Its totient is φ = 226710844.

The previous prime is 226982213. The next prime is 226982237. The reversal of 226982221 is 122289622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 226982221 - 2³ = 226982213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226982291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134431 + ... + 136108.

It is an arithmetic number, because the mean of its divisors is an integer number (56813400).

Almost surely, 2^226982221 is an apocalyptic number.

It is an amenable number.

226982221 is a deficient number, since it is larger than the sum of its proper divisors (271379).

226982221 is an equidigital number, since it uses as much as digits as its factorization.

226982221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271378.

The product of its digits is 13824, while the sum is 34.

The square root of 226982221 is about 15065.9291449283. The cubic root of 226982221 is about 610.0010937900.

The spelling of 226982221 in words is "two hundred twenty-six million, nine hundred eighty-two thousand, two hundred twenty-one".