22023321212 has 12 divisors (see below), whose sum is σ = 38543231496. Its totient is φ = 11010969360.

The previous prime is 22023321197. The next prime is 22023321269. The reversal of 22023321212 is 21212332022.

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, 97478 + ... + 231405.

It is an arithmetic number, because the mean of its divisors is an integer number (3211935958).

Almost surely, 2^22023321212 is an apocalyptic number.

It is an amenable number.

22023321212 is a deficient number, since it is larger than the sum of its proper divisors (16519910284).

22023321212 is a wasteful number, since it uses less digits than its factorization.

22023321212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345628 (or 345626 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22023321212 its reverse (21212332022), we get a palindrome (43235653234).

The spelling of 22023321212 in words is "twenty-two billion, twenty-three million, three hundred twenty-one thousand, two hundred twelve".