10121200211 has 4 divisors (see below), whose sum is σ = 10123122024. Its totient is φ = 10119278400.

The previous prime is 10121200169. The next prime is 10121200319. The reversal of 10121200211 is 11200212101.

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

It is a cyclic number.

It is not a de Polignac number, because 10121200211 - 2⁶ = 10121200147 is a prime.

It is a super-2 number, since 2×10121200211² (a number of 21 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 = 10121200192 and 10121200201.

It is not an unprimeable number, because it can be changed into a prime (10121200811) 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, 952985 + ... + 963546.

It is an arithmetic number, because the mean of its divisors is an integer number (2530780506).

Almost surely, 2^10121200211 is an apocalyptic number.

10121200211 is a deficient number, since it is larger than the sum of its proper divisors (1921813).

10121200211 is an equidigital number, since it uses as much as digits as its factorization.

10121200211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921812.

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

Adding to 10121200211 its reverse (11200212101), we get a palindrome (21321412312).

The spelling of 10121200211 in words is "ten billion, one hundred twenty-one million, two hundred thousand, two hundred eleven".