22120980 has 96 divisors (see below), whose sum is σ = 73113600. Its totient is φ = 4890240.

The previous prime is 22120957. The next prime is 22121003. The reversal of 22120980 is 8902122.

It is an interprime number because it is at equal distance from previous prime (22120957) and next prime (22121003).

It is a self number, because there is not a number n which added to its sum of digits gives 22120980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12171 + ... + 13869.

It is an arithmetic number, because the mean of its divisors is an integer number (761600).

Almost surely, 2^22120980 is an apocalyptic number.

22120980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22120980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36556800).

22120980 is an abundant number, since it is smaller than the sum of its proper divisors (50992620).

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

22120980 is a wasteful number, since it uses less digits than its factorization.

22120980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749 (or 1747 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 22120980 is about 4703.2945899656. The cubic root of 22120980 is about 280.7166167464.

The spelling of 22120980 in words is "twenty-two million, one hundred twenty thousand, nine hundred eighty".