2221001012201 has 2 divisors, whose sum is σ = 2221001012202. Its totient is φ = 2221001012200.

The previous prime is 2221001012183. The next prime is 2221001012221. The reversal of 2221001012201 is 1022101001222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1247295846976 + 973705165225 = 1116824^2 + 986765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221001012201 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221001012221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110500506100 + 1110500506101.

It is an arithmetic number, because the mean of its divisors is an integer number (1110500506101).

Almost surely, 2^{2221001012201} is an apocalyptic number.

It is an amenable number.

2221001012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221001012201 is an equidigital number, since it uses as much as digits as its factorization.

2221001012201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221001012201 its reverse (1022101001222), we get a palindrome (3243102013423).

The spelling of 2221001012201 in words is "two trillion, two hundred twenty-one billion, one million, twelve thousand, two hundred one".