11211020120 has 32 divisors (see below), whose sum is σ = 25242649920. Its totient is φ = 4481233920.

The previous prime is 11211020101. The next prime is 11211020147. The reversal of 11211020120 is 2102011211.

11211020120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41561 + ... + 155400.

It is an arithmetic number, because the mean of its divisors is an integer number (788832810).

Almost surely, 2^11211020120 is an apocalyptic number.

11211020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211020120 is an abundant number, since it is smaller than the sum of its proper divisors (14031629800).

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

11211020120 is a wasteful number, since it uses less digits than its factorization.

11211020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198395 (or 198391 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 11211020120 its reverse (2102011211), we get a palindrome (13313031331).

The spelling of 11211020120 in words is "eleven billion, two hundred eleven million, twenty thousand, one hundred twenty".