20111112101222 has 16 divisors (see below), whose sum is σ = 31585696783200. Its totient is φ = 9585530794752.

The previous prime is 20111112101147. The next prime is 20111112101261. The reversal of 20111112101222 is 22210121111102.

It is a self number, because there is not a number n which added to its sum of digits gives 20111112101222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 746058347 + ... + 746085302.

It is an arithmetic number, because the mean of its divisors is an integer number (1974106048950).

Almost surely, 2^{20111112101222} is an apocalyptic number.

20111112101222 is a deficient number, since it is larger than the sum of its proper divisors (11474584681978).

20111112101222 is a wasteful number, since it uses less digits than its factorization.

20111112101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492143967.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20111112101222 its reverse (22210121111102), we get a palindrome (42321233212324).

The spelling of 20111112101222 in words is "twenty trillion, one hundred eleven billion, one hundred twelve million, one hundred one thousand, two hundred twenty-two".