10121100211 has 4 divisors (see below), whose sum is σ = 10130361232. Its totient is φ = 10111839192.

The previous prime is 10121100191. The next prime is 10121100221. The reversal of 10121100211 is 11200112101.

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 10121100211 - 2⁷ = 10121100083 is a prime.

It is a super-2 number, since 2×10121100211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121100221) 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, 4628871 + ... + 4631056.

It is an arithmetic number, because the mean of its divisors is an integer number (2532590308).

Almost surely, 2^10121100211 is an apocalyptic number.

10121100211 is a deficient number, since it is larger than the sum of its proper divisors (9261021).

10121100211 is an equidigital number, since it uses as much as digits as its factorization.

10121100211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9261020.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 10121100211 its reverse (11200112101), we get a palindrome (21321212312).

The spelling of 10121100211 in words is "ten billion, one hundred twenty-one million, one hundred thousand, two hundred eleven".