222112222111102 has 4 divisors (see below), whose sum is σ = 333168333166656. Its totient is φ = 111056111055550.

The previous prime is 222112222111079. The next prime is 222112222111121. The reversal of 222112222111102 is 201111222211222.

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

It is a super-2 number, since 2×222112222111102² (a number of 29 digits) contains 22 as substring.

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, 55528055527774 + ... + 55528055527777.

It is an arithmetic number, because the mean of its divisors is an integer number (83292083291664).

Almost surely, 2^{222112222111102} is an apocalyptic number.

222112222111102 is a deficient number, since it is larger than the sum of its proper divisors (111056111055554).

222112222111102 is a wasteful number, since it uses less digits than its factorization.

222112222111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111056111055553.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 222112222111102 its reverse (201111222211222), we get a palindrome (423223444322324).

The spelling of 222112222111102 in words is "two hundred twenty-two trillion, one hundred twelve billion, two hundred twenty-two million, one hundred eleven thousand, one hundred two".