2201033312221 has 2 divisors, whose sum is σ = 2201033312222. Its totient is φ = 2201033312220.

The previous prime is 2201033312189. The next prime is 2201033312249. The reversal of 2201033312221 is 1222133301022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107724675225 + 1093308636996 = 1052485^2 + 1045614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201033312221 - 2⁵ = 2201033312189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2201033312192 and 2201033312201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201033312251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100516656110 + 1100516656111.

It is an arithmetic number, because the mean of its divisors is an integer number (1100516656111).

Almost surely, 2^{2201033312221} is an apocalyptic number.

It is an amenable number.

2201033312221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201033312221 is an equidigital number, since it uses as much as digits as its factorization.

2201033312221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2201033312221 its reverse (1222133301022), we get a palindrome (3423166613243).

The spelling of 2201033312221 in words is "two trillion, two hundred one billion, thirty-three million, three hundred twelve thousand, two hundred twenty-one".