112111221022221 has 16 divisors (see below), whose sum is σ = 149500958764608. Its totient is φ = 74731149168000.

The previous prime is 112111221022193. The next prime is 112111221022243. The reversal of 112111221022221 is 122220122111211.

It is a de Polignac number, because none of the positive numbers 2^k-112111221022221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112111221022121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1849959321 + ... + 1850019921.

It is an arithmetic number, because the mean of its divisors is an integer number (9343809922788).

Almost surely, 2^{112111221022221} is an apocalyptic number.

It is an amenable number.

112111221022221 is a deficient number, since it is larger than the sum of its proper divisors (37389737742387).

112111221022221 is a wasteful number, since it uses less digits than its factorization.

112111221022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130172.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 112111221022221 its reverse (122220122111211), we get a palindrome (234331343133432).

The spelling of 112111221022221 in words is "one hundred twelve trillion, one hundred eleven billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-one".