22111100320212 has 72 divisors (see below), whose sum is σ = 58507518730752. Its totient is φ = 7032153643200.

The previous prime is 22111100320087. The next prime is 22111100320217. The reversal of 22111100320212 is 21202300111122.

22111100320212 is a `hidden beast` number, since 2 + 21 + 1 + 110 + 0 + 320 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111100320217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 139447623 + ... + 139606094.

It is an arithmetic number, because the mean of its divisors is an integer number (812604426816).

Almost surely, 2^{22111100320212} is an apocalyptic number.

It is an amenable number.

22111100320212 is an abundant number, since it is smaller than the sum of its proper divisors (36396418410540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111100320212 is a wasteful number, since it uses less digits than its factorization.

22111100320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279053829 (or 279053824 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 22111100320212 its reverse (21202300111122), we get a palindrome (43313400431334).

The spelling of 22111100320212 in words is "twenty-two trillion, one hundred eleven billion, one hundred million, three hundred twenty thousand, two hundred twelve".