111100021222 has 16 divisors (see below), whose sum is σ = 185739974640. Its totient is φ = 49530659328.

The previous prime is 111100021217. The next prime is 111100021223. The reversal of 111100021222 is 222120001111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100021223) 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, 85990083 + ... + 85991374.

It is an arithmetic number, because the mean of its divisors is an integer number (11608748415).

Almost surely, 2^111100021222 is an apocalyptic number.

111100021222 is a deficient number, since it is larger than the sum of its proper divisors (74639953418).

111100021222 is a wasteful number, since it uses less digits than its factorization.

111100021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171981495.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 111100021222 its reverse (222120001111), we get a palindrome (333220022333).

The spelling of 111100021222 in words is "one hundred eleven billion, one hundred million, twenty-one thousand, two hundred twenty-two".