22100331212 has 24 divisors (see below), whose sum is σ = 39473602560. Its totient is φ = 10824362640.

The previous prime is 22100331203. The next prime is 22100331217. The reversal of 22100331212 is 21213300122.

It is not an unprimeable number, because it can be changed into a prime (22100331217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235214 + ... + 315477.

It is an arithmetic number, because the mean of its divisors is an integer number (1644733440).

Almost surely, 2^22100331212 is an apocalyptic number.

It is an amenable number.

22100331212 is a deficient number, since it is larger than the sum of its proper divisors (17373271348).

22100331212 is a wasteful number, since it uses less digits than its factorization.

22100331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550901 (or 550899 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22100331212 its reverse (21213300122), we get a palindrome (43313631334).

The spelling of 22100331212 in words is "twenty-two billion, one hundred million, three hundred thirty-one thousand, two hundred twelve".