22122234 has 28 divisors (see below), whose sum is σ = 49755546. Its totient is φ = 7373592.

The previous prime is 22122223. The next prime is 22122241. The reversal of 22122234 is 43222122.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 8037225 = 3753^2 + 2835^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 6129 + ... + 9044.

Almost surely, 2^22122234 is an apocalyptic number.

22122234 is an abundant number, since it is smaller than the sum of its proper divisors (27633312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122234 is an equidigital number, since it uses as much as digits as its factorization.

22122234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15193 (or 15178 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 22122234 is about 4703.4278988840. The cubic root of 22122234 is about 280.7219210923.

Adding to 22122234 its reverse (43222122), we get a palindrome (65344356).

The spelling of 22122234 in words is "twenty-two million, one hundred twenty-two thousand, two hundred thirty-four".