22121433 has 12 divisors (see below), whose sum is σ = 32184880. Its totient is φ = 14640696.

The previous prime is 22121431. The next prime is 22121447. The reversal of 22121433 is 33412122.

It is not a de Polignac number, because 22121433 - 2¹ = 22121431 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22121431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7591 + ... + 10092.

Almost surely, 2^22121433 is an apocalyptic number.

It is an amenable number.

22121433 is a deficient number, since it is larger than the sum of its proper divisors (10063447).

22121433 is a wasteful number, since it uses less digits than its factorization.

22121433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17828 (or 17825 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22121433 is about 4703.3427474510. The cubic root of 22121433 is about 280.7185329328.

Adding to 22121433 its reverse (33412122), we get a palindrome (55533555).

The spelling of 22121433 in words is "twenty-two million, one hundred twenty-one thousand, four hundred thirty-three".