2210000201221 has 2 divisors, whose sum is σ = 2210000201222. Its totient is φ = 2210000201220.

The previous prime is 2210000201183. The next prime is 2210000201237. The reversal of 2210000201221 is 1221020000122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2020349532100 + 189650669121 = 1421390^2 + 435489^2 .

It is a cyclic number.

It is not a de Polignac number, because 2210000201221 - 2¹³ = 2210000193029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210000201921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105000100610 + 1105000100611.

It is an arithmetic number, because the mean of its divisors is an integer number (1105000100611).

Almost surely, 2^{2210000201221} is an apocalyptic number.

It is an amenable number.

2210000201221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210000201221 is an equidigital number, since it uses as much as digits as its factorization.

2210000201221 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 13.

Adding to 2210000201221 its reverse (1221020000122), we get a palindrome (3431020201343).

The spelling of 2210000201221 in words is "two trillion, two hundred ten billion, two hundred one thousand, two hundred twenty-one".