222201211101111 has 96 divisors (see below), whose sum is σ = 372916529556480. Its totient is φ = 126076704768000.

The previous prime is 222201211101097. The next prime is 222201211101113. The reversal of 222201211101111 is 111101112102222.

It is a happy number.

222201211101111 is a `hidden beast` number, since 22 + 220 + 1 + 211 + 101 + 111 = 666.

It is not a de Polignac number, because 222201211101111 - 2⁷ = 222201211100983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222201211101113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 121888786 + ... + 123698336.

It is an arithmetic number, because the mean of its divisors is an integer number (3884547182880).

Almost surely, 2^{222201211101111} is an apocalyptic number.

222201211101111 is a deficient number, since it is larger than the sum of its proper divisors (150715318455369).

222201211101111 is a wasteful number, since it uses less digits than its factorization.

222201211101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810357 (or 1810354 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 222201211101111 its reverse (111101112102222), we get a palindrome (333302323203333).

The spelling of 222201211101111 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred eleven million, one hundred one thousand, one hundred eleven".