10101201002001 has 12 divisors (see below), whose sum is σ = 14634704107920. Its totient is φ = 6713789183640.

The previous prime is 10101201001979. The next prime is 10101201002051. The reversal of 10101201002001 is 10020010210101.

It is a happy number.

It is not a de Polignac number, because 10101201002001 - 2⁷ = 10101201001873 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 (10101201002051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1695398331 + ... + 1695404288.

It is an arithmetic number, because the mean of its divisors is an integer number (1219558675660).

Almost surely, 2^{10101201002001} is an apocalyptic number.

It is an amenable number.

10101201002001 is a deficient number, since it is larger than the sum of its proper divisors (4533503105919).

10101201002001 is a wasteful number, since it uses less digits than its factorization.

10101201002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390802956 (or 3390802953 counting only the distinct ones).

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

Adding to 10101201002001 its reverse (10020010210101), we get a palindrome (20121211212102).

The spelling of 10101201002001 in words is "ten trillion, one hundred one billion, two hundred one million, two thousand, one".