11201221012120 has 32 divisors (see below), whose sum is σ = 25203925091520. Its totient is φ = 4480279015680.

The previous prime is 11201221012021. The next prime is 11201221012153. The reversal of 11201221012120 is 2121012210211.

It is a junction number, because it is equal to n+sod(n) for n = 11201221012094 and 11201221012103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5675376 + ... + 7390015.

It is an arithmetic number, because the mean of its divisors is an integer number (787622659110).

Almost surely, 2^{11201221012120} is an apocalyptic number.

11201221012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201221012120 is an abundant number, since it is smaller than the sum of its proper divisors (14002704079400).

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

11201221012120 is a wasteful number, since it uses less digits than its factorization.

11201221012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13086835 (or 13086831 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11201221012120 its reverse (2121012210211), we get a palindrome (13322233222331).

The spelling of 11201221012120 in words is "eleven trillion, two hundred one billion, two hundred twenty-one million, twelve thousand, one hundred twenty".