22111102212112 has 10 divisors (see below), whose sum is σ = 42840260535998. Its totient is φ = 11055551106048.

The previous prime is 22111102212041. The next prime is 22111102212113. The reversal of 22111102212112 is 21121220111122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 15100871648256 + 7010230563856 = 3885984^2 + 2647684^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22111102212112.

It is not an unprimeable number, because it can be changed into a prime (22111102212113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690971944113 + ... + 690971944144.

Almost surely, 2^{22111102212112} is an apocalyptic number.

It is an amenable number.

22111102212112 is a deficient number, since it is larger than the sum of its proper divisors (20729158323886).

22111102212112 is a wasteful number, since it uses less digits than its factorization.

22111102212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381943888265 (or 1381943888259 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22111102212112 its reverse (21121220111122), we get a palindrome (43232322323234).

The spelling of 22111102212112 in words is "twenty-two trillion, one hundred eleven billion, one hundred two million, two hundred twelve thousand, one hundred twelve".