22011044 has 48 divisors (see below), whose sum is σ = 44815680. Its totient is φ = 9354240.

The previous prime is 22011043. The next prime is 22011047. The reversal of 22011044 is 44011022.

It is not an unprimeable number, because it can be changed into a prime (22011043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94352 + ... + 94584.

It is an arithmetic number, because the mean of its divisors is an integer number (933660).

Almost surely, 2^22011044 is an apocalyptic number.

It is an amenable number.

22011044 is an abundant number, since it is smaller than the sum of its proper divisors (22804636).

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

22011044 is a wasteful number, since it uses less digits than its factorization.

22011044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 22011044 is about 4691.5929064658. The cubic root of 22011044 is about 280.2508126800.

Adding to 22011044 its reverse (44011022), we get a palindrome (66022066).

The spelling of 22011044 in words is "twenty-two million, eleven thousand, forty-four".