2216051 has 4 divisors (see below), whose sum is σ = 2220504. Its totient is φ = 2211600.

The previous prime is 2216047. The next prime is 2216057. The reversal of 2216051 is 1506122.

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

It is a cyclic number.

It is not a de Polignac number, because 2216051 - 2² = 2216047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2216057) 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, 1370 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (555126).

2^2216051 is an apocalyptic number.

2216051 is a deficient number, since it is larger than the sum of its proper divisors (4453).

2216051 is an equidigital number, since it uses as much as digits as its factorization.

2216051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 2216051 is about 1488.6406550944. The cubic root of 2216051 is about 130.3746784549.

The spelling of 2216051 in words is "two million, two hundred sixteen thousand, fifty-one".