200002101222001 has 16 divisors (see below), whose sum is σ = 224132438149200. Its totient is φ = 178251209520384.

The previous prime is 200002101221981. The next prime is 200002101222023. The reversal of 200002101222001 is 100222101200002.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 61041031391376 + 138961069830625 = 7812876^2 + 11788175^2 .

It is not a de Polignac number, because 200002101222001 - 2¹¹ = 200002101219953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200002101222041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1569491176 + ... + 1569618601.

It is an arithmetic number, because the mean of its divisors is an integer number (14008277384325).

Almost surely, 2^{200002101222001} is an apocalyptic number.

It is an amenable number.

200002101222001 is a deficient number, since it is larger than the sum of its proper divisors (24130336927199).

200002101222001 is an equidigital number, since it uses as much as digits as its factorization.

200002101222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139109845 (or 3139109819 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200002101222001 its reverse (100222101200002), we get a palindrome (300224202422003).

The spelling of 200002101222001 in words is "two hundred trillion, two billion, one hundred one million, two hundred twenty-two thousand, one".