2220121201 has 2 divisors, whose sum is σ = 2220121202. Its totient is φ = 2220121200.

The previous prime is 2220121193. The next prime is 2220121219. The reversal of 2220121201 is 1021210222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2128899600 + 91221601 = 46140^2 + 9551^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220121201 - 2³ = 2220121193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220121301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110060600 + 1110060601.

It is an arithmetic number, because the mean of its divisors is an integer number (1110060601).

Almost surely, 2^2220121201 is an apocalyptic number.

It is an amenable number.

2220121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220121201 is an equidigital number, since it uses as much as digits as its factorization.

2220121201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2220121201 is about 47118.1621139874. The cubic root of 2220121201 is about 1304.5444897115.

Adding to 2220121201 its reverse (1021210222), we get a palindrome (3241331423).

The spelling of 2220121201 in words is "two billion, two hundred twenty million, one hundred twenty-one thousand, two hundred one".