22111101201222 has 24 divisors (see below), whose sum is σ = 52262602839720. Its totient is φ = 6700333697280.

The previous prime is 22111101201173. The next prime is 22111101201281. The reversal of 22111101201222 is 22210210111122.

22111101201222 is a `hidden beast` number, since 2 + 211 + 110 + 120 + 1 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 22111101201195 and 22111101201204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55836113947 + ... + 55836114342.

It is an arithmetic number, because the mean of its divisors is an integer number (2177608451655).

Almost surely, 2^{22111101201222} is an apocalyptic number.

22111101201222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22111101201222 is an abundant number, since it is smaller than the sum of its proper divisors (30151501638498).

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

22111101201222 is a wasteful number, since it uses less digits than its factorization.

22111101201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111672228308 (or 111672228305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22111101201222 its reverse (22210210111122), we get a palindrome (44321311312344).

The spelling of 22111101201222 in words is "twenty-two trillion, one hundred eleven billion, one hundred one million, two hundred one thousand, two hundred twenty-two".