22219072 has 14 divisors (see below), whose sum is σ = 44091098. Its totient is φ = 11109504.

The previous prime is 22219063. The next prime is 22219073. The reversal of 22219072 is 27091222.

It can be written as a sum of positive squares in only one way, i.e., 20214016 + 2005056 = 4496^2 + 1416^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22219073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173523 + ... + 173650.

Almost surely, 2^22219072 is an apocalyptic number.

It is an amenable number.

22219072 is a deficient number, since it is larger than the sum of its proper divisors (21872026).

22219072 is an equidigital number, since it uses as much as digits as its factorization.

22219072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347185 (or 347175 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22219072 is about 4713.7110645435. The cubic root of 22219072 is about 281.1309361378.

The spelling of 22219072 in words is "twenty-two million, two hundred nineteen thousand, seventy-two".