200121220259 has 2 divisors, whose sum is σ = 200121220260. Its totient is φ = 200121220258.

The previous prime is 200121220249. The next prime is 200121220261. The reversal of 200121220259 is 952022121002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200121220259 is a prime.

Together with 200121220261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (200121220249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060610129 + 100060610130.

It is an arithmetic number, because the mean of its divisors is an integer number (100060610130).

Almost surely, 2^200121220259 is an apocalyptic number.

200121220259 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121220259 is an equidigital number, since it uses as much as digits as its factorization.

200121220259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 200121220259 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty thousand, two hundred fifty-nine".