222101110021111 has 16 divisors (see below), whose sum is σ = 224533234129600. Its totient is φ = 219676251045888.

The previous prime is 222101110021073. The next prime is 222101110021127. The reversal of 222101110021111 is 111120011101222.

It is a cyclic number.

It is not a de Polignac number, because 222101110021111 - 2⁷ = 222101110020983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101110021151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529448695 + ... + 529868023.

It is an arithmetic number, because the mean of its divisors is an integer number (14033327133100).

Almost surely, 2^{222101110021111} is an apocalyptic number.

222101110021111 is a deficient number, since it is larger than the sum of its proper divisors (2432124108489).

222101110021111 is a wasteful number, since it uses less digits than its factorization.

222101110021111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427978.

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

Adding to 222101110021111 its reverse (111120011101222), we get a palindrome (333221121122333).

The spelling of 222101110021111 in words is "two hundred twenty-two trillion, one hundred one billion, one hundred ten million, twenty-one thousand, one hundred eleven".