10001210012001 has 48 divisors (see below), whose sum is σ = 15899349822720. Its totient is φ = 6019508597760.

The previous prime is 10001210011931. The next prime is 10001210012009. The reversal of 10001210012001 is 10021001210001.

It is a happy number.

It is not a de Polignac number, because 10001210012001 - 2¹⁰ = 10001210010977 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 (10001210012009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7399761 + ... + 8646321.

It is an arithmetic number, because the mean of its divisors is an integer number (331236454640).

Almost surely, 2^{10001210012001} is an apocalyptic number.

It is an amenable number.

10001210012001 is a deficient number, since it is larger than the sum of its proper divisors (5898139810719).

10001210012001 is a wasteful number, since it uses less digits than its factorization.

10001210012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248086 (or 1248083 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10001210012001 its reverse (10021001210001), we get a palindrome (20022211222002).

The spelling of 10001210012001 in words is "ten trillion, one billion, two hundred ten million, twelve thousand, one".