210000020012001 has 32 divisors (see below), whose sum is σ = 313174457222400. Its totient is φ = 139071538569600.

The previous prime is 210000020011973. The next prime is 210000020012011. The reversal of 210000020012001 is 100210020000012.

It is not a de Polignac number, because 210000020012001 - 2¹¹ = 210000020009953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (210000020012011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 623241565 + ... + 623578421.

It is an arithmetic number, because the mean of its divisors is an integer number (9786701788200).

Almost surely, 2^{210000020012001} is an apocalyptic number.

It is an amenable number.

210000020012001 is a deficient number, since it is larger than the sum of its proper divisors (103174437210399).

210000020012001 is a wasteful number, since it uses less digits than its factorization.

210000020012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489926 (or 489920 counting only the distinct ones).

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

Adding to 210000020012001 its reverse (100210020000012), we get a palindrome (310210040012013).

The spelling of 210000020012001 in words is "two hundred ten trillion, twenty million, twelve thousand, one".