112210100020021 has 2 divisors, whose sum is σ = 112210100020022. Its totient is φ = 112210100020020.

The previous prime is 112210100020019. The next prime is 112210100020061. The reversal of 112210100020021 is 120020001012211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106372613964100 + 5837486055921 = 10313710^2 + 2416089^2 .

It is a cyclic number.

It is not a de Polignac number, because 112210100020021 - 2¹ = 112210100020019 is a prime.

It is a super-2 number, since 2×112210100020021² (a number of 29 digits) contains 22 as substring.

Together with 112210100020019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 112210100019983 and 112210100020010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112210100020061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56105050010010 + 56105050010011.

It is an arithmetic number, because the mean of its divisors is an integer number (56105050010011).

Almost surely, 2^{112210100020021} is an apocalyptic number.

It is an amenable number.

112210100020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

112210100020021 is an equidigital number, since it uses as much as digits as its factorization.

112210100020021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112210100020021 its reverse (120020001012211), we get a palindrome (232230101032232).

The spelling of 112210100020021 in words is "one hundred twelve trillion, two hundred ten billion, one hundred million, twenty thousand, twenty-one".