22111211022212 has 48 divisors (see below), whose sum is σ = 41739226324992. Its totient is φ = 10188500112000.

The previous prime is 22111211022211. The next prime is 22111211022221. The reversal of 22111211022212 is 21222011211122.

It is not an unprimeable number, because it can be changed into a prime (22111211022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517187837 + ... + 517230587.

It is an arithmetic number, because the mean of its divisors is an integer number (869567215104).

Almost surely, 2^{22111211022212} is an apocalyptic number.

It is an amenable number.

22111211022212 is a deficient number, since it is larger than the sum of its proper divisors (19628015302780).

22111211022212 is a wasteful number, since it uses less digits than its factorization.

22111211022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58788 (or 58786 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 22111211022212 its reverse (21222011211122), we get a palindrome (43333222233334).

The spelling of 22111211022212 in words is "twenty-two trillion, one hundred eleven billion, two hundred eleven million, twenty-two thousand, two hundred twelve".