22403434421212 has 12 divisors (see below), whose sum is σ = 42221857178536. Its totient is φ = 10340046655920.

The previous prime is 22403434421191. The next prime is 22403434421219. The reversal of 22403434421212 is 21212443430422.

It is a super-2 number, since 2×22403434421212² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22403434421219) 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, 215417638614 + ... + 215417638717.

Almost surely, 2^{22403434421212} is an apocalyptic number.

It is an amenable number.

22403434421212 is a deficient number, since it is larger than the sum of its proper divisors (19818422757324).

22403434421212 is a wasteful number, since it uses less digits than its factorization.

22403434421212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430835277348 (or 430835277346 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 22403434421212 its reverse (21212443430422), we get a palindrome (43615877851634).

The spelling of 22403434421212 in words is "twenty-two trillion, four hundred three billion, four hundred thirty-four million, four hundred twenty-one thousand, two hundred twelve".