11221121120 has 48 divisors (see below), whose sum is σ = 28919893968. Its totient is φ = 4080407040.

The previous prime is 11221121111. The next prime is 11221121123. The reversal of 11221121120 is 2112112211.

It is a junction number, because it is equal to n+sod(n) for n = 11221121095 and 11221121104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221121123) 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, 3186059 + ... + 3189578.

It is an arithmetic number, because the mean of its divisors is an integer number (602497791).

Almost surely, 2^11221121120 is an apocalyptic number.

11221121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221121120 is an abundant number, since it is smaller than the sum of its proper divisors (17698772848).

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

11221121120 is a wasteful number, since it uses less digits than its factorization.

11221121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375663 (or 6375655 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11221121120 its reverse (2112112211), we get a palindrome (13333233331).

It can be divided in two parts, 112211 and 21120, that added together give a palindrome (133331).

The spelling of 11221121120 in words is "eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty".