22121122 has 8 divisors (see below), whose sum is σ = 33677136. Its totient is φ = 10895412.

The previous prime is 22121089. The next prime is 22121137. The reversal of 22121122 is 22112122.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82408 + ... + 82675.

It is an arithmetic number, because the mean of its divisors is an integer number (4209642).

Almost surely, 2^22121122 is an apocalyptic number.

22121122 is a deficient number, since it is larger than the sum of its proper divisors (11556014).

22121122 is a wasteful number, since it uses less digits than its factorization.

22121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165152.

The product of its digits is 32, while the sum is 13.

The square root of 22121122 is about 4703.3096857426. The cubic root of 22121122 is about 280.7172174081.

Adding to 22121122 its reverse (22112122), we get a palindrome (44233244).

The spelling of 22121122 in words is "twenty-two million, one hundred twenty-one thousand, one hundred twenty-two".