22102232121 has 12 divisors (see below), whose sum is σ = 31928053248. Its totient is φ = 14733618264.

The previous prime is 22102232093. The next prime is 22102232129. The reversal of 22102232121 is 12123220122.

It is not a de Polignac number, because 22102232121 - 2⁷ = 22102231993 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22102232094 and 22102232103.

It is not an unprimeable number, because it can be changed into a prime (22102232129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24216 + ... + 211638.

It is an arithmetic number, because the mean of its divisors is an integer number (2660671104).

Almost surely, 2^22102232121 is an apocalyptic number.

It is an amenable number.

22102232121 is a deficient number, since it is larger than the sum of its proper divisors (9825821127).

22102232121 is a wasteful number, since it uses less digits than its factorization.

22102232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200532 (or 200529 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22102232121 its reverse (12123220122), we get a palindrome (34225452243).

The spelling of 22102232121 in words is "twenty-two billion, one hundred two million, two hundred thirty-two thousand, one hundred twenty-one".