222001121111 has 64 divisors (see below), whose sum is σ = 291228327936. Its totient is φ = 164089411200.

The previous prime is 222001121107. The next prime is 222001121119. The reversal of 222001121111 is 111121100222.

222001121111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222001121111 - 2² = 222001121107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222001121119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 149696576 + ... + 149698058.

It is an arithmetic number, because the mean of its divisors is an integer number (4550442624).

Almost surely, 2^222001121111 is an apocalyptic number.

222001121111 is a deficient number, since it is larger than the sum of its proper divisors (69227206825).

222001121111 is a wasteful number, since it uses less digits than its factorization.

222001121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 222001121111 its reverse (111121100222), we get a palindrome (333122221333).

The spelling of 222001121111 in words is "two hundred twenty-two billion, one million, one hundred twenty-one thousand, one hundred eleven".