1111022211222 has 96 divisors (see below), whose sum is σ = 3133123943040. Its totient is φ = 288577190160.

The previous prime is 1111022211203. The next prime is 1111022211269. The reversal of 1111022211222 is 2221122201111.

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 = 1111022211195 and 1111022211204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19056688 + ... + 19114899.

It is an arithmetic number, because the mean of its divisors is an integer number (32636707740).

Almost surely, 2^{1111022211222} is an apocalyptic number.

1111022211222 is an abundant number, since it is smaller than the sum of its proper divisors (2022101731818).

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

1111022211222 is a wasteful number, since it uses less digits than its factorization.

1111022211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38171623 (or 38171610 counting only the distinct ones).

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

Adding to 1111022211222 its reverse (2221122201111), we get a palindrome (3332144412333).

The spelling of 1111022211222 in words is "one trillion, one hundred eleven billion, twenty-two million, two hundred eleven thousand, two hundred twenty-two".