200121222079 has 2 divisors, whose sum is σ = 200121222080. Its totient is φ = 200121222078.

The previous prime is 200121222017. The next prime is 200121222089. The reversal of 200121222079 is 970222121002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200121222079 - 2¹⁵ = 200121189311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200121222089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060611039 + 100060611040.

It is an arithmetic number, because the mean of its divisors is an integer number (100060611040).

Almost surely, 2^200121222079 is an apocalyptic number.

200121222079 is a deficient number, since it is larger than the sum of its proper divisors (1).

200121222079 is an equidigital number, since it uses as much as digits as its factorization.

200121222079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 200121222079 in words is "two hundred billion, one hundred twenty-one million, two hundred twenty-two thousand, seventy-nine".