22232220203212 has 24 divisors (see below), whose sum is σ = 40310729101440. Its totient is φ = 10717535086080.

The previous prime is 22232220203173. The next prime is 22232220203227. The reversal of 22232220203212 is 21230202223222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333223333 + ... + 333290044.

It is an arithmetic number, because the mean of its divisors is an integer number (1679613712560).

Almost surely, 2^{22232220203212} is an apocalyptic number.

It is an amenable number.

22232220203212 is a deficient number, since it is larger than the sum of its proper divisors (18078508898228).

22232220203212 is a wasteful number, since it uses less digits than its factorization.

22232220203212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666513681 (or 666513679 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22232220203212 its reverse (21230202223222), we get a palindrome (43462422426434).

The spelling of 22232220203212 in words is "twenty-two trillion, two hundred thirty-two billion, two hundred twenty million, two hundred three thousand, two hundred twelve".