23033022221 has 16 divisors (see below), whose sum is σ = 25311961728. Its totient is φ = 20785128000.

The previous prime is 23033022209. The next prime is 23033022247. The reversal of 23033022221 is 12222033032.

It is a cyclic number.

It is not a de Polignac number, because 23033022221 - 2²² = 23028827917 is a prime.

It is a super-2 number, since 2×23033022221² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23033022193 and 23033022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23033022721) 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, 2674895 + ... + 2683491.

It is an arithmetic number, because the mean of its divisors is an integer number (1581997608).

Almost surely, 2^23033022221 is an apocalyptic number.

It is an amenable number.

23033022221 is a deficient number, since it is larger than the sum of its proper divisors (2278939507).

23033022221 is a wasteful number, since it uses less digits than its factorization.

23033022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10372.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 23033022221 its reverse (12222033032), we get a palindrome (35255055253).

The spelling of 23033022221 in words is "twenty-three billion, thirty-three million, twenty-two thousand, two hundred twenty-one".