10111111222 has 8 divisors (see below), whose sum is σ = 15489362016. Its totient is φ = 4947990552.

The previous prime is 10111111189. The next prime is 10111111237. The reversal of 10111111222 is 22211111101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53782413 + ... + 53782600.

It is an arithmetic number, because the mean of its divisors is an integer number (1936170252).

Almost surely, 2^10111111222 is an apocalyptic number.

10111111222 is a deficient number, since it is larger than the sum of its proper divisors (5378250794).

10111111222 is a wasteful number, since it uses less digits than its factorization.

10111111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107565062.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10111111222 its reverse (22211111101), we get a palindrome (32322222323).

The spelling of 10111111222 in words is "ten billion, one hundred eleven million, one hundred eleven thousand, two hundred twenty-two".