22219056 has 80 divisors (see below), whose sum is σ = 67158400. Its totient is φ = 7013952.

The previous prime is 22219027. The next prime is 22219063. The reversal of 22219056 is 65091222.

It is a super-2 number, since 2×22219056² = 987372899062272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 6855 + ... + 9561.

It is an arithmetic number, because the mean of its divisors is an integer number (839480).

Almost surely, 2^22219056 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 22219056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33579200).

22219056 is an abundant number, since it is smaller than the sum of its proper divisors (44939344).

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

22219056 is a wasteful number, since it uses less digits than its factorization.

22219056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22219056 is about 4713.7093673666. The cubic root of 22219056 is about 281.1308686568.

The spelling of 22219056 in words is "twenty-two million, two hundred nineteen thousand, fifty-six".