1000200002161 has 2 divisors, whose sum is σ = 1000200002162. Its totient is φ = 1000200002160.

The previous prime is 1000200002143. The next prime is 1000200002227. The reversal of 1000200002161 is 1612000020001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 703785088561 + 296414913600 = 838919^2 + 544440^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000200002161 - 2⁵ = 1000200002129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1000200002761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500100001080 + 500100001081.

It is an arithmetic number, because the mean of its divisors is an integer number (500100001081).

Almost surely, 2^{1000200002161} is an apocalyptic number.

It is an amenable number.

1000200002161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000200002161 is an equidigital number, since it uses as much as digits as its factorization.

1000200002161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1000200002161 its reverse (1612000020001), we get a palindrome (2612200022162).

The spelling of 1000200002161 in words is "one trillion, two hundred million, two thousand, one hundred sixty-one".