112133210221 has 2 divisors, whose sum is σ = 112133210222. Its totient is φ = 112133210220.

The previous prime is 112133210173. The next prime is 112133210237. The reversal of 112133210221 is 122012331211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62006478121 + 50126732100 = 249011^2 + 223890^2 .

It is a cyclic number.

It is not a de Polignac number, because 112133210221 - 2²¹ = 112131113069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112133213221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56066605110 + 56066605111.

It is an arithmetic number, because the mean of its divisors is an integer number (56066605111).

Almost surely, 2^112133210221 is an apocalyptic number.

It is an amenable number.

112133210221 is a deficient number, since it is larger than the sum of its proper divisors (1).

112133210221 is an equidigital number, since it uses as much as digits as its factorization.

112133210221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 112133210221 its reverse (122012331211), we get a palindrome (234145541432).

The spelling of 112133210221 in words is "one hundred twelve billion, one hundred thirty-three million, two hundred ten thousand, two hundred twenty-one".