22222260 has 36 divisors (see below), whose sum is σ = 67408068. Its totient is φ = 5925888.

The previous prime is 22222253. The next prime is 22222261. The reversal of 22222260 is 6222222.

It can be written as a sum of positive squares in 2 ways, for example, as 16941456 + 5280804 = 4116^2 + 2298^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61549 + ... + 61908.

Almost surely, 2^22222260 is an apocalyptic number.

22222260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22222260 is an abundant number, since it is smaller than the sum of its proper divisors (45185808).

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

22222260 is a wasteful number, since it uses less digits than its factorization.

22222260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123472 (or 123467 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22222260 is about 4714.0492148470. The cubic root of 22222260 is about 281.1443810822.

Adding to 22222260 its reverse (6222222), we get a palindrome (28444482).

The spelling of 22222260 in words is "twenty-two million, two hundred twenty-two thousand, two hundred sixty".