200000110121221 has 2 divisors, whose sum is σ = 200000110121222. Its totient is φ = 200000110121220.

The previous prime is 200000110121179. The next prime is 200000110121249. The reversal of 200000110121221 is 122121011000002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162447897705025 + 37552212416196 = 12745505^2 + 6127986^2 .

It is a cyclic number.

It is not a de Polignac number, because 200000110121221 - 2³¹ = 199997962637573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200000110121291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100000055060610 + 100000055060611.

It is an arithmetic number, because the mean of its divisors is an integer number (100000055060611).

Almost surely, 2^{200000110121221} is an apocalyptic number.

It is an amenable number.

200000110121221 is a deficient number, since it is larger than the sum of its proper divisors (1).

200000110121221 is an equidigital number, since it uses as much as digits as its factorization.

200000110121221 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 200000110121221 its reverse (122121011000002), we get a palindrome (322121121121223).

The spelling of 200000110121221 in words is "two hundred trillion, one hundred ten million, one hundred twenty-one thousand, two hundred twenty-one".