222111111001122 has 64 divisors (see below), whose sum is σ = 564274919577600. Its totient is φ = 63439706405520.

The previous prime is 222111111001111. The next prime is 222111111001139. The reversal of 222111111001122 is 221100111111222.

It is a happy number.

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

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 222111111001095 and 222111111001104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94256004 + ... + 96583727.

It is an arithmetic number, because the mean of its divisors is an integer number (8816795618400).

Almost surely, 2^{222111111001122} is an apocalyptic number.

222111111001122 is an abundant number, since it is smaller than the sum of its proper divisors (342163808576478).

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

222111111001122 is a wasteful number, since it uses less digits than its factorization.

222111111001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190842828 (or 190842822 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 222111111001122 its reverse (221100111111222), we get a palindrome (443211222112344).

The spelling of 222111111001122 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred eleven million, one thousand, one hundred twenty-two".