1111122222112 has 48 divisors (see below), whose sum is σ = 2516581533312. Its totient is φ = 473041612800.

The previous prime is 1111122222101. The next prime is 1111122222139. The reversal of 1111122222112 is 2112222211111.

It is a happy number.

It is a super-2 number, since 2×1111122222112² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1111122222112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16391233 + ... + 16458880.

It is an arithmetic number, because the mean of its divisors is an integer number (52428781944).

Almost surely, 2^{1111122222112} is an apocalyptic number.

It is an amenable number.

1111122222112 is an abundant number, since it is smaller than the sum of its proper divisors (1405459311200).

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

1111122222112 is a wasteful number, since it uses less digits than its factorization.

1111122222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32850281 (or 32850273 counting only the distinct ones).

The product of its digits is 64, while the sum is 19.

Adding to 1111122222112 its reverse (2112222211111), we get a palindrome (3223344433223).

The spelling of 1111122222112 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".