112112022011221 has 2 divisors, whose sum is σ = 112112022011222. Its totient is φ = 112112022011220.

The previous prime is 112112022011183. The next prime is 112112022011243. The reversal of 112112022011221 is 122110220211211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102782815370596 + 9329206640625 = 10138186^2 + 3054375^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112112022011221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112112052011221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56056011005610 + 56056011005611.

It is an arithmetic number, because the mean of its divisors is an integer number (56056011005611).

Almost surely, 2^{112112022011221} is an apocalyptic number.

It is an amenable number.

112112022011221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112112022011221 is an equidigital number, since it uses as much as digits as its factorization.

112112022011221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 112112022011221 its reverse (122110220211211), we get a palindrome (234222242222432).

The spelling of 112112022011221 in words is "one hundred twelve trillion, one hundred twelve billion, twenty-two million, eleven thousand, two hundred twenty-one".