1001211210011 has 16 divisors (see below), whose sum is σ = 1006972382208. Its totient is φ = 995470106400.

The previous prime is 1001211209983. The next prime is 1001211210053. The reversal of 1001211210011 is 1100121121001.

It is a cyclic number.

It is not a de Polignac number, because 1001211210011 - 2³⁴ = 984031340827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001211209974 and 1001211210001.

It is not an unprimeable number, because it can be changed into a prime (1001211213011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326444900 + ... + 326447966.

It is an arithmetic number, because the mean of its divisors is an integer number (62935773888).

Almost surely, 2^{1001211210011} is an apocalyptic number.

1001211210011 is a deficient number, since it is larger than the sum of its proper divisors (5761172197).

1001211210011 is a wasteful number, since it uses less digits than its factorization.

1001211210011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1001211210011 its reverse (1100121121001), we get a palindrome (2101332331012).

The spelling of 1001211210011 in words is "one trillion, one billion, two hundred eleven million, two hundred ten thousand, eleven".