111312201221022 has 8 divisors (see below), whose sum is σ = 222624402442056. Its totient is φ = 37104067073672.

The previous prime is 111312201220981. The next prime is 111312201221029. The reversal of 111312201221022 is 220122102213111.

111312201221022 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

111312201221022 is an admirable number.

It is a super-2 number, since 2×111312201221022² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111312201221022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312201221029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9276016768413 + ... + 9276016768424.

It is an arithmetic number, because the mean of its divisors is an integer number (27828050305257).

Almost surely, 2^{111312201221022} is an apocalyptic number.

111312201221022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111312201221022 is a wasteful number, since it uses less digits than its factorization.

111312201221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18552033536842.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 111312201221022 its reverse (220122102213111), we get a palindrome (331434303434133).

The spelling of 111312201221022 in words is "one hundred eleven trillion, three hundred twelve billion, two hundred one million, two hundred twenty-one thousand, twenty-two".