22232121 has 8 divisors (see below), whose sum is σ = 30129024. Its totient is φ = 14578320.

The previous prime is 22232117. The next prime is 22232143. The reversal of 22232121 is 12123222.

It is a happy number.

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

It is not a de Polignac number, because 22232121 - 2² = 22232117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22232121.

It is not an unprimeable number, because it can be changed into a prime (22232521) 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 7 ways as a sum of consecutive naturals, for example, 60561 + ... + 60926.

It is an arithmetic number, because the mean of its divisors is an integer number (3766128).

Almost surely, 2^22232121 is an apocalyptic number.

It is an amenable number.

22232121 is a deficient number, since it is larger than the sum of its proper divisors (7896903).

22232121 is a wasteful number, since it uses less digits than its factorization.

22232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121551.

The product of its digits is 96, while the sum is 15.

The square root of 22232121 is about 4715.0950149493. The cubic root of 22232121 is about 281.1859603331.

Adding to 22232121 its reverse (12123222), we get a palindrome (34355343).

The spelling of 22232121 in words is "twenty-two million, two hundred thirty-two thousand, one hundred twenty-one".