112210001021 has 4 divisors (see below), whose sum is σ = 112527876732. Its totient is φ = 111892125312.

The previous prime is 112210001011. The next prime is 112210001023. The reversal of 112210001021 is 120100012211.

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 91642425625 + 20567575396 = 302725^2 + 143414^2 .

It is a cyclic number.

It is not a de Polignac number, because 112210001021 - 2¹⁰ = 112209999997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112210000993 and 112210001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112210001023) 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 in 3 ways as a sum of consecutive naturals, for example, 158937326 + ... + 158938031.

It is an arithmetic number, because the mean of its divisors is an integer number (28131969183).

Almost surely, 2^112210001021 is an apocalyptic number.

It is an amenable number.

112210001021 is a deficient number, since it is larger than the sum of its proper divisors (317875711).

112210001021 is an equidigital number, since it uses as much as digits as its factorization.

112210001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317875710.

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

Adding to 112210001021 its reverse (120100012211), we get a palindrome (232310013232).

The spelling of 112210001021 in words is "one hundred twelve billion, two hundred ten million, one thousand, twenty-one".