222211121010111 has 32 divisors (see below), whose sum is σ = 340569890216640. Its totient is φ = 143096592384000.

The previous prime is 222211121010077. The next prime is 222211121010149. The reversal of 222211121010111 is 111010121112222.

It is a happy number.

222211121010111 is a `hidden beast` number, since 2 + 222 + 111 + 210 + 10 + 111 = 666.

It is not a de Polignac number, because 222211121010111 - 2³³ = 222202531075519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222211121010311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 993614530 + ... + 993838143.

It is an arithmetic number, because the mean of its divisors is an integer number (10642809069270).

Almost surely, 2^{222211121010111} is an apocalyptic number.

222211121010111 is a deficient number, since it is larger than the sum of its proper divisors (118358769206529).

222211121010111 is a wasteful number, since it uses less digits than its factorization.

222211121010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987452824 (or 1987452818 counting only the distinct ones).

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

Adding to 222211121010111 its reverse (111010121112222), we get a palindrome (333221242122333).

The spelling of 222211121010111 in words is "two hundred twenty-two trillion, two hundred eleven billion, one hundred twenty-one million, ten thousand, one hundred eleven".