22111220202212 has 24 divisors (see below), whose sum is σ = 39426565413312. Its totient is φ = 10846506725600.

The previous prime is 22111220202193. The next prime is 22111220202223. The reversal of 22111220202212 is 21220202211122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129537 + ... + 6982647.

It is an arithmetic number, because the mean of its divisors is an integer number (1642773558888).

Almost surely, 2^{22111220202212} is an apocalyptic number.

It is an amenable number.

22111220202212 is a deficient number, since it is larger than the sum of its proper divisors (17315345211100).

22111220202212 is a wasteful number, since it uses less digits than its factorization.

22111220202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4874659 (or 4874657 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22111220202212 its reverse (21220202211122), we get a palindrome (43331422413334).

The spelling of 22111220202212 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, two hundred two thousand, two hundred twelve".