2110001120221 has 2 divisors, whose sum is σ = 2110001120222. Its totient is φ = 2110001120220.

The previous prime is 2110001120189. The next prime is 2110001120261. The reversal of 2110001120221 is 1220211000112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1990554156900 + 119446963321 = 1410870^2 + 345611^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110001120221 - 2⁵ = 2110001120189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2110001120261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055000560110 + 1055000560111.

It is an arithmetic number, because the mean of its divisors is an integer number (1055000560111).

Almost surely, 2^{2110001120221} is an apocalyptic number.

It is an amenable number.

2110001120221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110001120221 is an equidigital number, since it uses as much as digits as its factorization.

2110001120221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2110001120221 its reverse (1220211000112), we get a palindrome (3330212120333).

The spelling of 2110001120221 in words is "two trillion, one hundred ten billion, one million, one hundred twenty thousand, two hundred twenty-one".