111201121201222 has 32 divisors (see below), whose sum is σ = 189307565647200. Its totient is φ = 48565616871168.

The previous prime is 111201121201207. The next prime is 111201121201231. The reversal of 111201121201222 is 222102121102111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 111201121201222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130908897 + ... + 131755612.

It is an arithmetic number, because the mean of its divisors is an integer number (5915861426475).

Almost surely, 2^{111201121201222} is an apocalyptic number.

111201121201222 is a deficient number, since it is larger than the sum of its proper divisors (78106444445978).

111201121201222 is a wasteful number, since it uses less digits than its factorization.

111201121201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262665400.

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

Adding to 111201121201222 its reverse (222102121102111), we get a palindrome (333303242303333).

The spelling of 111201121201222 in words is "one hundred eleven trillion, two hundred one billion, one hundred twenty-one million, two hundred one thousand, two hundred twenty-two".