1000121200211 has 6 divisors (see below), whose sum is σ = 1163406294180. Its totient is φ = 857246742996.

The previous prime is 1000121200207. The next prime is 1000121200217. The reversal of 1000121200211 is 1120021210001.

It is not a de Polignac number, because 1000121200211 - 2² = 1000121200207 is a prime.

It is a super-2 number, since 2×1000121200211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000121200192 and 1000121200201.

It is not an unprimeable number, because it can be changed into a prime (1000121200217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10205318321 + ... + 10205318418.

It is an arithmetic number, because the mean of its divisors is an integer number (193901049030).

Almost surely, 2^{1000121200211} is an apocalyptic number.

1000121200211 is a deficient number, since it is larger than the sum of its proper divisors (163285093969).

1000121200211 is an equidigital number, since it uses as much as digits as its factorization.

1000121200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20410636753 (or 20410636746 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1000121200211 its reverse (1120021210001), we get a palindrome (2120142410212).

The spelling of 1000121200211 in words is "one trillion, one hundred twenty-one million, two hundred thousand, two hundred eleven".