2021112112237 has 2 divisors, whose sum is σ = 2021112112238. Its totient is φ = 2021112112236.

The previous prime is 2021112112163. The next prime is 2021112112307. The reversal of 2021112112237 is 7322112111202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002284430441 + 18827681796 = 1415021^2 + 137214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2021112112237 is a prime.

It is a super-2 number, since 2×2021112112237² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021112112637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010556056118 + 1010556056119.

It is an arithmetic number, because the mean of its divisors is an integer number (1010556056119).

Almost surely, 2^{2021112112237} is an apocalyptic number.

It is an amenable number.

2021112112237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021112112237 is an equidigital number, since it uses as much as digits as its factorization.

2021112112237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 2021112112237 its reverse (7322112111202), we get a palindrome (9343224223439).

The spelling of 2021112112237 in words is "two trillion, twenty-one billion, one hundred twelve million, one hundred twelve thousand, two hundred thirty-seven".