210001012001 has 32 divisors (see below), whose sum is σ = 236011501440. Its totient is φ = 185244019200.

The previous prime is 210001011991. The next prime is 210001012051. The reversal of 210001012001 is 100210100012.

It is not a de Polignac number, because 210001012001 - 2²² = 209996817697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210001012001.

It is not an unprimeable number, because it can be changed into a prime (210001012051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17035226 + ... + 17047548.

It is an arithmetic number, because the mean of its divisors is an integer number (7375359420).

Almost surely, 2^210001012001 is an apocalyptic number.

It is an amenable number.

210001012001 is a deficient number, since it is larger than the sum of its proper divisors (26010489439).

210001012001 is a wasteful number, since it uses less digits than its factorization.

210001012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12737.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 210001012001 its reverse (100210100012), we get a palindrome (310211112013).

The spelling of 210001012001 in words is "two hundred ten billion, one million, twelve thousand, one".