22225146 has 16 divisors (see below), whose sum is σ = 44678304. Its totient is φ = 7370384.

The previous prime is 22225129. The next prime is 22225211. The reversal of 22225146 is 64152222.

It is a happy number.

It is a super-2 number, since 2×22225146² = 987914229442632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8220 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (2792394).

Almost surely, 2^22225146 is an apocalyptic number.

22225146 is an abundant number, since it is smaller than the sum of its proper divisors (22453158).

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

22225146 is a wasteful number, since it uses less digits than its factorization.

22225146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19005.

The product of its digits is 1920, while the sum is 24.

The square root of 22225146 is about 4714.3553111746. The cubic root of 22225146 is about 281.1565512750.

Adding to 22225146 its reverse (64152222), we get a palindrome (86377368).

The spelling of 22225146 in words is "twenty-two million, two hundred twenty-five thousand, one hundred forty-six".