2001220001011 has 8 divisors (see below), whose sum is σ = 2495027533824. Its totient is φ = 1559392208520.

The previous prime is 2001220001009. The next prime is 2001220001059. The reversal of 2001220001011 is 1101000221002.

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 2001220001011 - 2¹ = 2001220001009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001220007011) 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, 12994934995 + ... + 12994935148.

It is an arithmetic number, because the mean of its divisors is an integer number (311878441728).

Almost surely, 2^{2001220001011} is an apocalyptic number.

2001220001011 is a deficient number, since it is larger than the sum of its proper divisors (493807532813).

2001220001011 is a wasteful number, since it uses less digits than its factorization.

2001220001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25989870161.

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

Adding to 2001220001011 its reverse (1101000221002), we get a palindrome (3102220222013).

The spelling of 2001220001011 in words is "two trillion, one billion, two hundred twenty million, one thousand, eleven".