2206284221 has 2 divisors, whose sum is σ = 2206284222. Its totient is φ = 2206284220.

The previous prime is 2206284217. The next prime is 2206284233. The reversal of 2206284221 is 1224826022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1900524025 + 305760196 = 43595^2 + 17486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2206284221 - 2² = 2206284217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2206284281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1103142110 + 1103142111.

It is an arithmetic number, because the mean of its divisors is an integer number (1103142111).

Almost surely, 2^2206284221 is an apocalyptic number.

It is an amenable number.

2206284221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2206284221 is an equidigital number, since it uses as much as digits as its factorization.

2206284221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 2206284221 is about 46971.0998487368. The cubic root of 2206284221 is about 1301.8286338596.

The spelling of 2206284221 in words is "two billion, two hundred six million, two hundred eighty-four thousand, two hundred twenty-one".