22022120 has 16 divisors (see below), whose sum is σ = 49549860. Its totient is φ = 8808832.

The previous prime is 22022113. The next prime is 22022131. The reversal of 22022120 is 2122022.

It can be written as a sum of positive squares in 2 ways, for example, as 21659716 + 362404 = 4654^2 + 602^2 .

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, 275237 + ... + 275316.

Almost surely, 2^22022120 is an apocalyptic number.

22022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22022120 is an abundant number, since it is smaller than the sum of its proper divisors (27527740).

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

22022120 is a wasteful number, since it uses less digits than its factorization.

22022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550564 (or 550560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 22022120 is about 4692.7731673287. The cubic root of 22022120 is about 280.2978123815.

Adding to 22022120 its reverse (2122022), we get a palindrome (24144142).

The spelling of 22022120 in words is "twenty-two million, twenty-two thousand, one hundred twenty".