22111146 has 12 divisors (see below), whose sum is σ = 47907522. Its totient is φ = 7370376.

The previous prime is 22111127. The next prime is 22111151. The reversal of 22111146 is 64111122.

It can be written as a sum of positive squares in only one way, i.e., 22043025 + 68121 = 4695^2 + 261^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1228397 = 22111146 / (2 + 2 + 1 + 1 + 1 + 1 + 4 + 6).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 614181 + ... + 614216.

Almost surely, 2^22111146 is an apocalyptic number.

22111146 is an abundant number, since it is smaller than the sum of its proper divisors (25796376).

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

22111146 is a wasteful number, since it uses less digits than its factorization.

22111146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228405 (or 1228402 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 22111146 is about 4702.2490363655. The cubic root of 22111146 is about 280.6750125561.

Adding to 22111146 its reverse (64111122), we get a palindrome (86222268).

The spelling of 22111146 in words is "twenty-two million, one hundred eleven thousand, one hundred forty-six".