10111220211 has 8 divisors (see below), whose sum is σ = 13506548944. Its totient is φ = 6728352480.

The previous prime is 10111220143. The next prime is 10111220219. The reversal of 10111220211 is 11202211101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10111220211 - 2¹⁴ = 10111203827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10111220219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113356 + ... + 3116601.

It is an arithmetic number, because the mean of its divisors is an integer number (1688318618).

Almost surely, 2^10111220211 is an apocalyptic number.

10111220211 is a deficient number, since it is larger than the sum of its proper divisors (3395328733).

10111220211 is an equidigital number, since it uses as much as digits as its factorization.

10111220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230501.

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

Adding to 10111220211 its reverse (11202211101), we get a palindrome (21313431312).

The spelling of 10111220211 in words is "ten billion, one hundred eleven million, two hundred twenty thousand, two hundred eleven".