111982201 has 2 divisors, whose sum is σ = 111982202. Its totient is φ = 111982200.

The previous prime is 111982183. The next prime is 111982223. The reversal of 111982201 is 102289111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59274601 + 52707600 = 7699^2 + 7260^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111982201 is a prime.

It is not a weakly prime, because it can be changed into another prime (111982271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55991100 + 55991101.

It is an arithmetic number, because the mean of its divisors is an integer number (55991101).

Almost surely, 2^111982201 is an apocalyptic number.

It is an amenable number.

111982201 is a deficient number, since it is larger than the sum of its proper divisors (1).

111982201 is an equidigital number, since it uses as much as digits as its factorization.

111982201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 25.

The square root of 111982201 is about 10582.1642871390. The cubic root of 111982201 is about 482.0029168858.

The spelling of 111982201 in words is "one hundred eleven million, nine hundred eighty-two thousand, two hundred one".