1001012012211 has 4 divisors (see below), whose sum is σ = 1334682682952. Its totient is φ = 667341341472.

The previous prime is 1001012012179. The next prime is 1001012012213. The reversal of 1001012012211 is 1122102101001.

1001012012211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1001012012211 - 2⁵ = 1001012012179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001012012213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166835335366 + ... + 166835335371.

It is an arithmetic number, because the mean of its divisors is an integer number (333670670738).

Almost surely, 2^{1001012012211} is an apocalyptic number.

1001012012211 is a deficient number, since it is larger than the sum of its proper divisors (333670670741).

1001012012211 is an equidigital number, since it uses as much as digits as its factorization.

1001012012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333670670740.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001012012211 its reverse (1122102101001), we get a palindrome (2123114113212).

The spelling of 1001012012211 in words is "one trillion, one billion, twelve million, twelve thousand, two hundred eleven".