221026227 has 8 divisors (see below), whose sum is σ = 296024064. Its totient is φ = 146689608.

The previous prime is 221026217. The next prime is 221026277. The reversal of 221026227 is 722620122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 221026227 - 2²³ = 212637619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221026197 and 221026206.

It is not an unprimeable number, because it can be changed into a prime (221026217) 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, 164523 + ... + 165860.

It is an arithmetic number, because the mean of its divisors is an integer number (37003008).

Almost surely, 2^221026227 is an apocalyptic number.

221026227 is a deficient number, since it is larger than the sum of its proper divisors (74997837).

221026227 is a wasteful number, since it uses less digits than its factorization.

221026227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330609.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 221026227 is about 14866.9508306176. The cubic root of 221026227 is about 604.6182752408.

Adding to 221026227 its reverse (722620122), we get a palindrome (943646349).

The spelling of 221026227 in words is "two hundred twenty-one million, twenty-six thousand, two hundred twenty-seven".