200202000121901 has 2 divisors, whose sum is σ = 200202000121902. Its totient is φ = 200202000121900.

The previous prime is 200202000121847. The next prime is 200202000122021. The reversal of 200202000121901 is 109121000202002.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137437990326025 + 62764009795876 = 11723395^2 + 7922374^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200202000121901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200202000121801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100101000060950 + 100101000060951.

It is an arithmetic number, because the mean of its divisors is an integer number (100101000060951).

Almost surely, 2^{200202000121901} is an apocalyptic number.

It is an amenable number.

200202000121901 is a deficient number, since it is larger than the sum of its proper divisors (1).

200202000121901 is an equidigital number, since it uses as much as digits as its factorization.

200202000121901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 200202000121901 its reverse (109121000202002), we get a palindrome (309323000323903).

The spelling of 200202000121901 in words is "two hundred trillion, two hundred two billion, one hundred twenty-one thousand, nine hundred one".