22107072 has 112 divisors (see below), whose sum is σ = 66824352. Its totient is φ = 6389760.

The previous prime is 22107047. The next prime is 22107097. The reversal of 22107072 is 27070122.

It is an interprime number because it is at equal distance from previous prime (22107047) and next prime (22107097).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42172 + ... + 42692.

It is an arithmetic number, because the mean of its divisors is an integer number (596646).

Almost surely, 2^22107072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22107072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33412176).

22107072 is an abundant number, since it is smaller than the sum of its proper divisors (44717280).

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

22107072 is a wasteful number, since it uses less digits than its factorization.

22107072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 22107072 is about 4701.8158194468. The cubic root of 22107072 is about 280.6577732833.

Adding to 22107072 its reverse (27070122), we get a palindrome (49177194).

The spelling of 22107072 in words is "twenty-two million, one hundred seven thousand, seventy-two".