2212312013 has 4 divisors (see below), whose sum is σ = 2215330908. Its totient is φ = 2209293120.

The previous prime is 2212312007. The next prime is 2212312019. The reversal of 2212312013 is 3102132122.

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

It is an interprime number because it is at equal distance from previous prime (2212312007) and next prime (2212312019).

It can be written as a sum of positive squares in 2 ways, for example, as 1194255364 + 1018056649 = 34558^2 + 31907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212312013 - 2²⁶ = 2145203149 is a prime.

It is a super-2 number, since 2×2212312013² = 9788648885728224338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212311982 and 2212312000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212312019) 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, 1508348 + ... + 1509813.

It is an arithmetic number, because the mean of its divisors is an integer number (553832727).

Almost surely, 2^2212312013 is an apocalyptic number.

It is an amenable number.

2212312013 is a deficient number, since it is larger than the sum of its proper divisors (3018895).

2212312013 is an equidigital number, since it uses as much as digits as its factorization.

2212312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018894.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2212312013 is about 47035.2209838542. The cubic root of 2212312013 is about 1303.0131316942.

Adding to 2212312013 its reverse (3102132122), we get a palindrome (5314444135).

The spelling of 2212312013 in words is "two billion, two hundred twelve million, three hundred twelve thousand, thirteen".