22133691 has 12 divisors (see below), whose sum is σ = 32714968. Its totient is φ = 14412384.

The previous prime is 22133669. The next prime is 22133707. The reversal of 22133691 is 19633122.

It is not a de Polignac number, because 22133691 - 2⁶ = 22133627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22133621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28210 + ... + 28983.

Almost surely, 2^22133691 is an apocalyptic number.

22133691 is a deficient number, since it is larger than the sum of its proper divisors (10581277).

22133691 is a wasteful number, since it uses less digits than its factorization.

22133691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57242 (or 57239 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 22133691 is about 4704.6456827268. The cubic root of 22133691 is about 280.7703742456.

The spelling of 22133691 in words is "twenty-two million, one hundred thirty-three thousand, six hundred ninety-one".