22111010220222 has 48 divisors (see below), whose sum is σ = 59728443196032. Its totient is φ = 5743119537360.

The previous prime is 22111010220217. The next prime is 22111010220227. The reversal of 22111010220222 is 22202201011122.

It is a happy number.

22111010220222 is a `hidden beast` number, since 2 + 211 + 1 + 0 + 10 + 220 + 222 = 666.

It is an interprime number because it is at equal distance from previous prime (22111010220217) and next prime (22111010220227).

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 = 22111010220195 and 22111010220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111010220227) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 7976553528 + ... + 7976556299.

It is an arithmetic number, because the mean of its divisors is an integer number (1244342566584).

Almost surely, 2^{22111010220222} is an apocalyptic number.

22111010220222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22111010220222 is an abundant number, since it is smaller than the sum of its proper divisors (37617432975810).

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

22111010220222 is a wasteful number, since it uses less digits than its factorization.

22111010220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15953109853 (or 15953109850 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 22111010220222 its reverse (22202201011122), we get a palindrome (44313211231344).

The spelling of 22111010220222 in words is "twenty-two trillion, one hundred eleven billion, ten million, two hundred twenty thousand, two hundred twenty-two".