222434421 has 24 divisors (see below), whose sum is σ = 329273952. Its totient is φ = 133452000.

The previous prime is 222434413. The next prime is 222434423. The reversal of 222434421 is 124434222.

It is not a de Polignac number, because 222434421 - 2³ = 222434413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222434391 and 222434400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222434423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33630 + ... + 39696.

It is an arithmetic number, because the mean of its divisors is an integer number (13719748).

Almost surely, 2^222434421 is an apocalyptic number.

It is an amenable number.

222434421 is a deficient number, since it is larger than the sum of its proper divisors (106839531).

222434421 is a wasteful number, since it uses less digits than its factorization.

222434421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193 (or 6182 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 222434421 is about 14914.2355151044. The cubic root of 222434421 is about 605.8995983279.

Adding to 222434421 its reverse (124434222), we get a palindrome (346868643).

The spelling of 222434421 in words is "two hundred twenty-two million, four hundred thirty-four thousand, four hundred twenty-one".