200120002122251 has 2 divisors, whose sum is σ = 200120002122252. Its totient is φ = 200120002122250.

The previous prime is 200120002122199. The next prime is 200120002122263. The reversal of 200120002122251 is 152221200021002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 200120002122251 - 2²² = 200119997927947 is a prime.

It is not a weakly prime, because it can be changed into another prime (200120002152251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100060001061125 + 100060001061126.

It is an arithmetic number, because the mean of its divisors is an integer number (100060001061126).

Almost surely, 2^{200120002122251} is an apocalyptic number.

200120002122251 is a deficient number, since it is larger than the sum of its proper divisors (1).

200120002122251 is an equidigital number, since it uses as much as digits as its factorization.

200120002122251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

Adding to 200120002122251 its reverse (152221200021002), we get a palindrome (352341202143253).

The spelling of 200120002122251 in words is "two hundred trillion, one hundred twenty billion, two million, one hundred twenty-two thousand, two hundred fifty-one".