111201021222 has 16 divisors (see below), whose sum is σ = 228412908912. Its totient is φ = 36065196000.

The previous prime is 111201021193. The next prime is 111201021229. The reversal of 111201021222 is 222120102111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201021229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250452529 + ... + 250452972.

It is an arithmetic number, because the mean of its divisors is an integer number (14275806807).

Almost surely, 2^111201021222 is an apocalyptic number.

111201021222 is an abundant number, since it is smaller than the sum of its proper divisors (117211887690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111201021222 is a wasteful number, since it uses less digits than its factorization.

111201021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500905543.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111201021222 its reverse (222120102111), we get a palindrome (333321123333).

The spelling of 111201021222 in words is "one hundred eleven billion, two hundred one million, twenty-one thousand, two hundred twenty-two".