111101221022012 has 24 divisors (see below), whose sum is σ = 209385405969600. Its totient is φ = 51276914646336.

The previous prime is 111101221022009. The next prime is 111101221022017. The reversal of 111101221022012 is 210220122101111.

It is a super-2 number, since 2×111101221022012² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111101221022017) 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, 7191812 + ... + 16550667.

It is an arithmetic number, because the mean of its divisors is an integer number (8724391915400).

Almost surely, 2^{111101221022012} is an apocalyptic number.

It is an amenable number.

111101221022012 is a deficient number, since it is larger than the sum of its proper divisors (98284184947588).

111101221022012 is a wasteful number, since it uses less digits than its factorization.

111101221022012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23832485 (or 23832483 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111101221022012 its reverse (210220122101111), we get a palindrome (321321343123123).

The spelling of 111101221022012 in words is "one hundred eleven trillion, one hundred one billion, two hundred twenty-one million, twenty-two thousand, twelve".