22123403321212 has 12 divisors (see below), whose sum is σ = 39964857612736. Its totient is φ = 10704872574720.

The previous prime is 22123403321161. The next prime is 22123403321249. The reversal of 22123403321212 is 21212330432122.

It is a happy number.

It is a congruent number.

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, 89207271333 + ... + 89207271580.

Almost surely, 2^{22123403321212} is an apocalyptic number.

It is an amenable number.

22123403321212 is a deficient number, since it is larger than the sum of its proper divisors (17841454291524).

22123403321212 is a wasteful number, since it uses less digits than its factorization.

22123403321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178414542948 (or 178414542946 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 22123403321212 its reverse (21212330432122), we get a palindrome (43335733753334).

The spelling of 22123403321212 in words is "twenty-two trillion, one hundred twenty-three billion, four hundred three million, three hundred twenty-one thousand, two hundred twelve".