22032232121 has 8 divisors (see below), whose sum is σ = 22643347584. Its totient is φ = 21421940400.

The previous prime is 22032232111. The next prime is 22032232141. The reversal of 22032232121 is 12123223022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22032232121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22032232093 and 22032232102.

It is not an unprimeable number, because it can be changed into a prime (22032232111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151505 + ... + 258878.

It is an arithmetic number, because the mean of its divisors is an integer number (2830418448).

Almost surely, 2^22032232121 is an apocalyptic number.

It is an amenable number.

22032232121 is a deficient number, since it is larger than the sum of its proper divisors (611115463).

22032232121 is a wasteful number, since it uses less digits than its factorization.

22032232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411871.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22032232121 its reverse (12123223022), we get a palindrome (34155455143).

Subtracting from 22032232121 its reverse (12123223022), we obtain a palindrome (9909009099).

The spelling of 22032232121 in words is "twenty-two billion, thirty-two million, two hundred thirty-two thousand, one hundred twenty-one".