11012120211 has 4 divisors (see below), whose sum is σ = 14682826952. Its totient is φ = 7341413472.

The previous prime is 11012120167. The next prime is 11012120213. The reversal of 11012120211 is 11202121011.

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

It is not a de Polignac number, because 11012120211 - 2⁷ = 11012120083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012120213) 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, 1835353366 + ... + 1835353371.

It is an arithmetic number, because the mean of its divisors is an integer number (3670706738).

Almost surely, 2^11012120211 is an apocalyptic number.

11012120211 is a deficient number, since it is larger than the sum of its proper divisors (3670706741).

11012120211 is an equidigital number, since it uses as much as digits as its factorization.

11012120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670706740.

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

Adding to 11012120211 its reverse (11202121011), we get a palindrome (22214241222).

The spelling of 11012120211 in words is "eleven billion, twelve million, one hundred twenty thousand, two hundred eleven".