222111211101 has 32 divisors (see below), whose sum is σ = 323760729600. Its totient is φ = 134613952704.

The previous prime is 222111211037. The next prime is 222111211111. The reversal of 222111211101 is 101112111222.

It is a happy number.

It is not a de Polignac number, because 222111211101 - 2⁶ = 222111211037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111211111) 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 31 ways as a sum of consecutive naturals, for example, 19651950 + ... + 19663248.

It is an arithmetic number, because the mean of its divisors is an integer number (10117522800).

Almost surely, 2^222111211101 is an apocalyptic number.

It is an amenable number.

222111211101 is a deficient number, since it is larger than the sum of its proper divisors (101649518499).

222111211101 is a wasteful number, since it uses less digits than its factorization.

222111211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18905.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 222111211101 its reverse (101112111222), we get a palindrome (323223322323).

The spelling of 222111211101 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred eleven thousand, one hundred one".