22111040 has 56 divisors (see below), whose sum is σ = 60179712. Its totient is φ = 7580160.

The previous prime is 22111039. The next prime is 22111051. The reversal of 22111040 is 4011122.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2696 + ... + 7175.

Almost surely, 2^22111040 is an apocalyptic number.

22111040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22111040 is an abundant number, since it is smaller than the sum of its proper divisors (38068672).

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

22111040 is an equidigital number, since it uses as much as digits as its factorization.

22111040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9895 (or 9885 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 22111040 is about 4702.2377651497. The cubic root of 22111040 is about 280.6745640403.

Adding to 22111040 its reverse (4011122), we get a palindrome (26122162).

It can be divided in two parts, 2211 and 1040, that multiplied together give a triangular number (2299440 = T₂₁₄₄).

The spelling of 22111040 in words is "twenty-two million, one hundred eleven thousand, forty".