11111201222 has 16 divisors (see below), whose sum is σ = 18252721872. Its totient is φ = 5030891520.

The previous prime is 11111201219. The next prime is 11111201237. The reversal of 11111201222 is 22210211111.

It is a junction number, because it is equal to n+sod(n) for n = 11111201197 and 11111201206.

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, 976943 + ... + 988250.

It is an arithmetic number, because the mean of its divisors is an integer number (1140795117).

Almost surely, 2^11111201222 is an apocalyptic number.

11111201222 is a deficient number, since it is larger than the sum of its proper divisors (7141520650).

11111201222 is a wasteful number, since it uses less digits than its factorization.

11111201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965463.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11111201222 its reverse (22210211111), we get a palindrome (33321412333).

The spelling of 11111201222 in words is "eleven billion, one hundred eleven million, two hundred one thousand, two hundred twenty-two".