11121122211000 has 64 divisors (see below), whose sum is σ = 34697901307680. Its totient is φ = 2965632588800.

The previous prime is 11121122210953. The next prime is 11121122211013. The reversal of 11121122211000 is 11222112111.

It is a happy number.

11121122211000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1853517369 + ... + 1853523368.

Almost surely, 2^{11121122211000} is an apocalyptic number.

11121122211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121122211000 is an abundant number, since it is smaller than the sum of its proper divisors (23576779096680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121122211000 is a wasteful number, since it uses less digits than its factorization.

11121122211000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707040761 (or 3707040747 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11121122211000 its reverse (11222112111), we get a palindrome (11132344323111).

The spelling of 11121122211000 in words is "eleven trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand".