22012133 has 16 divisors (see below), whose sum is σ = 26308800. Its totient is φ = 18151680.

The previous prime is 22012129. The next prime is 22012141. The reversal of 22012133 is 33121022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22012133 - 2² = 22012129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012183) 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, 7133 + ... + 9741.

It is an arithmetic number, because the mean of its divisors is an integer number (1644300).

Almost surely, 2^22012133 is an apocalyptic number.

It is an amenable number.

22012133 is a deficient number, since it is larger than the sum of its proper divisors (4296667).

22012133 is a wasteful number, since it uses less digits than its factorization.

22012133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 22012133 is about 4691.7089636933. The cubic root of 22012133 is about 280.2554344221.

Adding to 22012133 its reverse (33121022), we get a palindrome (55133155).

Subtracting 22012133 from its reverse (33121022), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 2201 and 2133, that added together give a palindrome (4334).

The spelling of 22012133 in words is "twenty-two million, twelve thousand, one hundred thirty-three".