210201000002001 has 6 divisors (see below), whose sum is σ = 303623666669570. Its totient is φ = 140134000001328.

The previous prime is 210201000001981. The next prime is 210201000002039. The reversal of 210201000002001 is 100200000102012.

It can be written as a sum of positive squares in only one way, i.e., 164027548040976 + 46173451961025 = 12807324^2 + 6795105^2 .

It is not a de Polignac number, because 210201000002001 - 2⁷ = 210201000001873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 23355666666889 = 210201000002001 / (2 + 1 + 0 + 2 + 0 + 1 + 0 + 0 + 0 + 0 + 0 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210201000002801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11677833333436 + ... + 11677833333453.

Almost surely, 2^{210201000002001} is an apocalyptic number.

It is an amenable number.

210201000002001 is a deficient number, since it is larger than the sum of its proper divisors (93422666667569).

210201000002001 is a wasteful number, since it uses less digits than its factorization.

210201000002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23355666666895 (or 23355666666892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 210201000002001 its reverse (100200000102012), we get a palindrome (310401000104013).

The spelling of 210201000002001 in words is "two hundred ten trillion, two hundred one billion, two thousand, one".