2221022201 has 2 divisors, whose sum is σ = 2221022202. Its totient is φ = 2221022200.

The previous prime is 2221022183. The next prime is 2221022227. The reversal of 2221022201 is 1022201222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2211256576 + 9765625 = 47024^2 + 3125^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221022201 - 2²⁶ = 2153913337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2221022231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110511100 + 1110511101.

It is an arithmetic number, because the mean of its divisors is an integer number (1110511101).

Almost surely, 2^2221022201 is an apocalyptic number.

It is an amenable number.

2221022201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221022201 is an equidigital number, since it uses as much as digits as its factorization.

2221022201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2221022201 is about 47127.7222131518. The cubic root of 2221022201 is about 1304.7209418823.

Adding to 2221022201 its reverse (1022201222), we get a palindrome (3243223423).

The spelling of 2221022201 in words is "two billion, two hundred twenty-one million, twenty-two thousand, two hundred one".