112102010021 has 2 divisors, whose sum is σ = 112102010022. Its totient is φ = 112102010020.

The previous prime is 112102009997. The next prime is 112102010023. The reversal of 112102010021 is 120010201211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96543189796 + 15558820225 = 310714^2 + 124735^2 .

It is a cyclic number.

It is not a de Polignac number, because 112102010021 - 2¹⁴ = 112101993637 is a prime.

Together with 112102010023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 112102009984 and 112102010011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112102010023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56051005010 + 56051005011.

It is an arithmetic number, because the mean of its divisors is an integer number (56051005011).

Almost surely, 2^112102010021 is an apocalyptic number.

It is an amenable number.

112102010021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112102010021 is an equidigital number, since it uses as much as digits as its factorization.

112102010021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 112102010021 its reverse (120010201211), we get a palindrome (232112211232).

The spelling of 112102010021 in words is "one hundred twelve billion, one hundred two million, ten thousand, twenty-one".