22321131212 has 12 divisors (see below), whose sum is σ = 39097791096. Its totient is φ = 11150333760.

The previous prime is 22321131197. The next prime is 22321131299. The reversal of 22321131212 is 21213112322.

It is a super-3 number, since 3×22321131212³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2553053 + ... + 2561780.

It is an arithmetic number, because the mean of its divisors is an integer number (3258149258).

Almost surely, 2^22321131212 is an apocalyptic number.

It is an amenable number.

22321131212 is a deficient number, since it is larger than the sum of its proper divisors (16776659884).

22321131212 is a wasteful number, since it uses less digits than its factorization.

22321131212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5115928 (or 5115926 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 22321131212 its reverse (21213112322), we get a palindrome (43534243534).

The spelling of 22321131212 in words is "twenty-two billion, three hundred twenty-one million, one hundred thirty-one thousand, two hundred twelve".