11211111110 has 8 divisors (see below), whose sum is σ = 20180000016. Its totient is φ = 4484444440.

The previous prime is 11211111097. The next prime is 11211111151. The reversal of 11211111110 is 1111111211.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 11211111091 and 11211111100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560555546 + ... + 560555565.

It is an arithmetic number, because the mean of its divisors is an integer number (2522500002).

Almost surely, 2^11211111110 is an apocalyptic number.

11211111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11211111110 is a deficient number, since it is larger than the sum of its proper divisors (8968888906).

11211111110 is a wasteful number, since it uses less digits than its factorization.

11211111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121111118.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11211111110 its reverse (1111111211), we get a palindrome (12322222321).

The spelling of 11211111110 in words is "eleven billion, two hundred eleven million, one hundred eleven thousand, one hundred ten".