1111202112222 has 64 divisors (see below), whose sum is σ = 2639547025920. Its totient is φ = 345654936000.

The previous prime is 1111202112221. The next prime is 1111202112259. The reversal of 1111202112222 is 2222112021111.

1111202112222 is a `hidden beast` number, since 111 + 120 + 211 + 2 + 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 = 1111202112195 and 1111202112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111202112221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10859904 + ... + 10961747.

It is an arithmetic number, because the mean of its divisors is an integer number (41242922280).

Almost surely, 2^{1111202112222} is an apocalyptic number.

1111202112222 is an abundant number, since it is smaller than the sum of its proper divisors (1528344913698).

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

1111202112222 is a wasteful number, since it uses less digits than its factorization.

1111202112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21821726 (or 21821720 counting only the distinct ones).

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

Adding to 1111202112222 its reverse (2222112021111), we get a palindrome (3333314133333).

The spelling of 1111202112222 in words is "one trillion, one hundred eleven billion, two hundred two million, one hundred twelve thousand, two hundred twenty-two".