2116213 has 4 divisors (see below), whose sum is σ = 2308608. Its totient is φ = 1923820.

The previous prime is 2116199. The next prime is 2116291. The reversal of 2116213 is 3126112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2116213 is a prime.

It is a super-2 number, since 2×2116213² = 8956714922738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116813) 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, 96181 + ... + 96202.

It is an arithmetic number, because the mean of its divisors is an integer number (577152).

2^2116213 is an apocalyptic number.

It is an amenable number.

2116213 is a deficient number, since it is larger than the sum of its proper divisors (192395).

2116213 is a wasteful number, since it uses less digits than its factorization.

2116213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192394.

The product of its digits is 72, while the sum is 16.

The square root of 2116213 is about 1454.7209354374. The cubic root of 2116213 is about 128.3866280397.

The spelling of 2116213 in words is "two million, one hundred sixteen thousand, two hundred thirteen".