22221260 has 24 divisors (see below), whose sum is σ = 49121520. Its totient is φ = 8420544.

The previous prime is 22221259. The next prime is 22221299. The reversal of 22221260 is 6212222.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28859 + ... + 29618.

It is an arithmetic number, because the mean of its divisors is an integer number (2046730).

Almost surely, 2^22221260 is an apocalyptic number.

22221260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22221260 is an abundant number, since it is smaller than the sum of its proper divisors (26900260).

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

22221260 is a wasteful number, since it uses less digits than its factorization.

22221260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58505 (or 58503 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 22221260 is about 4713.9431477268. The cubic root of 22221260 is about 281.1401638604.

Adding to 22221260 its reverse (6212222), we get a palindrome (28433482).

The spelling of 22221260 in words is "twenty-two million, two hundred twenty-one thousand, two hundred sixty".