221200121221033 has 2 divisors, whose sum is σ = 221200121221034. Its totient is φ = 221200121221032.

The previous prime is 221200121220943. The next prime is 221200121221063. The reversal of 221200121221033 is 330122121002122.

221200121221033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221090342977449 + 109778243584 = 14869107^2 + 331328^2 .

It is a cyclic number.

It is not a de Polignac number, because 221200121221033 - 2⁹ = 221200121220521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221200121220995 and 221200121221013.

It is not a weakly prime, because it can be changed into another prime (221200121221063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110600060610516 + 110600060610517.

It is an arithmetic number, because the mean of its divisors is an integer number (110600060610517).

Almost surely, 2^{221200121221033} is an apocalyptic number.

It is an amenable number.

221200121221033 is a deficient number, since it is larger than the sum of its proper divisors (1).

221200121221033 is an equidigital number, since it uses as much as digits as its factorization.

221200121221033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 221200121221033 its reverse (330122121002122), we get a palindrome (551322242223155).

The spelling of 221200121221033 in words is "two hundred twenty-one trillion, two hundred billion, one hundred twenty-one million, two hundred twenty-one thousand, thirty-three".