2219801 has 2 divisors, whose sum is σ = 2219802. Its totient is φ = 2219800.

The previous prime is 2219797. The next prime is 2219807. The reversal of 2219801 is 1089122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 203401 = 1420^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219801 - 2² = 2219797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2219807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1109900 + 1109901.

It is an arithmetic number, because the mean of its divisors is an integer number (1109901).

2^2219801 is an apocalyptic number.

It is an amenable number.

2219801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2219801 is an equidigital number, since it uses as much as digits as its factorization.

2219801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2219801 is about 1489.8996610510. The cubic root of 2219801 is about 130.4481769932.

The spelling of 2219801 in words is "two million, two hundred nineteen thousand, eight hundred one".