22401233212 has 12 divisors (see below), whose sum is σ = 39289471200. Its totient is φ = 11175670016.

The previous prime is 22401233147. The next prime is 22401233213. The reversal of 22401233212 is 21233210422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401233213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6234628 + ... + 6238219.

It is an arithmetic number, because the mean of its divisors is an integer number (3274122600).

Almost surely, 2^22401233212 is an apocalyptic number.

It is an amenable number.

22401233212 is a deficient number, since it is larger than the sum of its proper divisors (16888237988).

22401233212 is a wasteful number, since it uses less digits than its factorization.

22401233212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12473300 (or 12473298 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 22401233212 its reverse (21233210422), we get a palindrome (43634443634).

The spelling of 22401233212 in words is "twenty-two billion, four hundred one million, two hundred thirty-three thousand, two hundred twelve".