22011004 has 12 divisors (see below), whose sum is σ = 39560584. Its totient is φ = 10707984.

The previous prime is 22011001. The next prime is 22011037. The reversal of 22011004 is 40011022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74214 + ... + 74509.

Almost surely, 2^22011004 is an apocalyptic number.

It is an amenable number.

22011004 is a deficient number, since it is larger than the sum of its proper divisors (17549580).

22011004 is a wasteful number, since it uses less digits than its factorization.

22011004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148764 (or 148762 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22011004 is about 4691.5886435194. The cubic root of 22011004 is about 280.2506429162.

Adding to 22011004 its reverse (40011022), we get a palindrome (62022026).

The spelling of 22011004 in words is "twenty-two million, eleven thousand, four".