2001002001211 has 8 divisors (see below), whose sum is σ = 2013894116864. Its totient is φ = 1988117398440.

The previous prime is 2001002001113. The next prime is 2001002001227. The reversal of 2001002001211 is 1121002001002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001002001211 - 2⁷ = 2001002001083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001002001511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343331 + ... + 2409676.

It is an arithmetic number, because the mean of its divisors is an integer number (251736764608).

Almost surely, 2^{2001002001211} is an apocalyptic number.

2001002001211 is a deficient number, since it is larger than the sum of its proper divisors (12892115653).

2001002001211 is a wasteful number, since it uses less digits than its factorization.

2001002001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3756441.

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

Adding to 2001002001211 its reverse (1121002001002), we get a palindrome (3122004002213).

The spelling of 2001002001211 in words is "two trillion, one billion, two million, one thousand, two hundred eleven".