112210212202021 has 4 divisors (see below), whose sum is σ = 112211337678700. Its totient is φ = 112209086725344.

The previous prime is 112210212202019. The next prime is 112210212202061. The reversal of 112210212202021 is 120202212012211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77820361912225 + 34389850289796 = 8821585^2 + 5864286^2 .

It is a cyclic number.

It is not a de Polignac number, because 112210212202021 - 2¹ = 112210212202019 is a prime.

It is a super-2 number, since 2×112210212202021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112210212202021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112210212202001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562588776 + ... + 562788193.

It is an arithmetic number, because the mean of its divisors is an integer number (28052834419675).

Almost surely, 2^{112210212202021} is an apocalyptic number.

It is an amenable number.

112210212202021 is a deficient number, since it is larger than the sum of its proper divisors (1125476679).

112210212202021 is an equidigital number, since it uses as much as digits as its factorization.

112210212202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125476678.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112210212202021 its reverse (120202212012211), we get a palindrome (232412424214232).

The spelling of 112210212202021 in words is "one hundred twelve trillion, two hundred ten billion, two hundred twelve million, two hundred two thousand, twenty-one".