222129439 has 8 divisors (see below), whose sum is σ = 253996160. Its totient is φ = 190296216.

The previous prime is 222129419. The next prime is 222129451. The reversal of 222129439 is 934921222.

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

It is a cyclic number.

It is not a de Polignac number, because 222129439 - 2⁵ = 222129407 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 (222129419) 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, 7972 + ... + 22534.

It is an arithmetic number, because the mean of its divisors is an integer number (31749520).

Almost surely, 2^222129439 is an apocalyptic number.

222129439 is a deficient number, since it is larger than the sum of its proper divisors (31866721).

222129439 is a wasteful number, since it uses less digits than its factorization.

222129439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16749.

The product of its digits is 15552, while the sum is 34.

The square root of 222129439 is about 14904.0074812112. The cubic root of 222129439 is about 605.6225533905.

The spelling of 222129439 in words is "two hundred twenty-two million, one hundred twenty-nine thousand, four hundred thirty-nine".