22261118 has 16 divisors (see below), whose sum is σ = 36509184. Its totient is φ = 10095960.

The previous prime is 22261111. The next prime is 22261123. The reversal of 22261118 is 81116222.

It is a junction number, because it is equal to n+sod(n) for n = 22261093 and 22261102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22261111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12521 + ... + 14187.

It is an arithmetic number, because the mean of its divisors is an integer number (2281824).

Almost surely, 2^22261118 is an apocalyptic number.

22261118 is a deficient number, since it is larger than the sum of its proper divisors (14248066).

22261118 is a wasteful number, since it uses less digits than its factorization.

22261118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2287.

The product of its digits is 384, while the sum is 23.

The square root of 22261118 is about 4718.1689244875. The cubic root of 22261118 is about 281.3081560068.

The spelling of 22261118 in words is "twenty-two million, two hundred sixty-one thousand, one hundred eighteen".