221134222 has 24 divisors (see below), whose sum is σ = 354699072. Its totient is φ = 103286400.

The previous prime is 221134153. The next prime is 221134223. The reversal of 221134222 is 222431122.

It is a super-3 number, since 3×221134222³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221134222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221134223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50022 + ... + 54262.

It is an arithmetic number, because the mean of its divisors is an integer number (14779128).

Almost surely, 2^221134222 is an apocalyptic number.

221134222 is a deficient number, since it is larger than the sum of its proper divisors (133564850).

221134222 is a wasteful number, since it uses less digits than its factorization.

221134222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332 (or 4303 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 221134222 is about 14870.5824364750. The cubic root of 221134222 is about 604.7167328157.

Adding to 221134222 its reverse (222431122), we get a palindrome (443565344).

It can be divided in two parts, 22113 and 4222, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 221134222 in words is "two hundred twenty-one million, one hundred thirty-four thousand, two hundred twenty-two".