10210012001001 has 12 divisors (see below), whose sum is σ = 14751679227012. Its totient is φ = 6804881999136.

The previous prime is 10210012000999. The next prime is 10210012001011. The reversal of 10210012001001 is 10010021001201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5325363905625 + 4884648095376 = 2307675^2 + 2210124^2 .

It is not a de Polignac number, because 10210012001001 - 2¹ = 10210012000999 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 (10210012001011) 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, 149352946 + ... + 149421291.

It is an arithmetic number, because the mean of its divisors is an integer number (1229306602251).

Almost surely, 2^{10210012001001} is an apocalyptic number.

It is an amenable number.

10210012001001 is a deficient number, since it is larger than the sum of its proper divisors (4541667226011).

10210012001001 is a wasteful number, since it uses less digits than its factorization.

10210012001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298778040 (or 298778037 counting only the distinct ones).

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

Adding to 10210012001001 its reverse (10010021001201), we get a palindrome (20220033002202).

The spelling of 10210012001001 in words is "ten trillion, two hundred ten billion, twelve million, one thousand, one".