1000111021211 has 16 divisors (see below), whose sum is σ = 1058841907200. Its totient is φ = 941991609888.

The previous prime is 1000111021177. The next prime is 1000111021229. The reversal of 1000111021211 is 1121201110001.

It is a cyclic number.

It is not a de Polignac number, because 1000111021211 - 2²² = 1000106826907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000111021192 and 1000111021201.

It is not an unprimeable number, because it can be changed into a prime (1000111021271) 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, 18688985 + ... + 18742421.

It is an arithmetic number, because the mean of its divisors is an integer number (66177619200).

Almost surely, 2^{1000111021211} is an apocalyptic number.

1000111021211 is a deficient number, since it is larger than the sum of its proper divisors (58730885989).

1000111021211 is a wasteful number, since it uses less digits than its factorization.

1000111021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59138.

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

Adding to 1000111021211 its reverse (1121201110001), we get a palindrome (2121312131212).

The spelling of 1000111021211 in words is "one trillion, one hundred eleven million, twenty-one thousand, two hundred eleven".