2010001221001 has 4 divisors (see below), whose sum is σ = 2025344741904. Its totient is φ = 1994657700100.

The previous prime is 2010001220977. The next prime is 2010001221037. The reversal of 2010001221001 is 1001221000102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2010001221001 - 2¹³ = 2010001212809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2010001221071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7671760255 + ... + 7671760516.

It is an arithmetic number, because the mean of its divisors is an integer number (506336185476).

Almost surely, 2^{2010001221001} is an apocalyptic number.

It is an amenable number.

2010001221001 is a deficient number, since it is larger than the sum of its proper divisors (15343520903).

2010001221001 is a wasteful number, since it uses less digits than its factorization.

2010001221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15343520902.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2010001221001 its reverse (1001221000102), we get a palindrome (3011222221103).

The spelling of 2010001221001 in words is "two trillion, ten billion, one million, two hundred twenty-one thousand, one".