20022133 has 4 divisors (see below), whose sum is σ = 20487808. Its totient is φ = 19556460.

The previous prime is 20022127. The next prime is 20022137. The reversal of 20022133 is 33122002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20022133 - 2¹⁷ = 19891061 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 (20022137) 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, 232773 + ... + 232858.

It is an arithmetic number, because the mean of its divisors is an integer number (5121952).

Almost surely, 2^20022133 is an apocalyptic number.

It is an amenable number.

20022133 is a deficient number, since it is larger than the sum of its proper divisors (465675).

20022133 is an equidigital number, since it uses as much as digits as its factorization.

20022133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465674.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20022133 is about 4474.6098153917. The cubic root of 20022133 is about 271.5418550876.

Adding to 20022133 its reverse (33122002), we get a palindrome (53144135).

The spelling of 20022133 in words is "twenty million, twenty-two thousand, one hundred thirty-three".