211111120222 has 4 divisors (see below), whose sum is σ = 316666680336. Its totient is φ = 105555560110.

The previous prime is 211111120201. The next prime is 211111120249. The reversal of 211111120222 is 222021111112.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 211111120196 and 211111120205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52777780054 + ... + 52777780057.

It is an arithmetic number, because the mean of its divisors is an integer number (79166670084).

Almost surely, 2^211111120222 is an apocalyptic number.

211111120222 is a deficient number, since it is larger than the sum of its proper divisors (105555560114).

211111120222 is a wasteful number, since it uses less digits than its factorization.

211111120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105555560113.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211111120222 its reverse (222021111112), we get a palindrome (433132231334).

The spelling of 211111120222 in words is "two hundred eleven billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty-two".