1112221122201 has 36 divisors (see below), whose sum is σ = 1869284637012. Its totient is φ = 635401718784.

The previous prime is 1112221122197. The next prime is 1112221122203. The reversal of 1112221122201 is 1022211222111.

1112221122201 is a `hidden beast` number, since 111 + 222 + 112 + 220 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1087381786176 + 24839336025 = 1042776^2 + 157605^2 .

It is not a de Polignac number, because 1112221122201 - 2² = 1112221122197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1112221122203) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1540161 + ... + 2143953.

Almost surely, 2^{1112221122201} is an apocalyptic number.

It is an amenable number.

1112221122201 is a deficient number, since it is larger than the sum of its proper divisors (757063514811).

1112221122201 is a wasteful number, since it uses less digits than its factorization.

1112221122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607990 (or 607980 counting only the distinct ones).

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

Adding to 1112221122201 its reverse (1022211222111), we get a palindrome (2134432344312).

The spelling of 1112221122201 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred one".