2112213001 has 4 divisors (see below), whose sum is σ = 2113136452. Its totient is φ = 2111289552.

The previous prime is 2112212987. The next prime is 2112213007. The reversal of 2112213001 is 1003122112.

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 825125625 + 1287087376 = 28725^2 + 35876^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112213001 - 2¹⁷ = 2112081929 is a prime.

It is a super-2 number, since 2×2112213001² = 8922887523186852002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112213007) 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, 458286 + ... + 462871.

It is an arithmetic number, because the mean of its divisors is an integer number (528284113).

Almost surely, 2^2112213001 is an apocalyptic number.

It is an amenable number.

2112213001 is a deficient number, since it is larger than the sum of its proper divisors (923451).

2112213001 is an equidigital number, since it uses as much as digits as its factorization.

2112213001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923450.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2112213001 is about 45958.8185335524. The cubic root of 2112213001 is about 1283.0568623679.

Adding to 2112213001 its reverse (1003122112), we get a palindrome (3115335113).

The spelling of 2112213001 in words is "two billion, one hundred twelve million, two hundred thirteen thousand, one".