11021221120120 has 32 divisors (see below), whose sum is σ = 26102892128400. Its totient is φ = 4176462739968.

The previous prime is 11021221120097. The next prime is 11021221120123. The reversal of 11021221120120 is 2102112212011.

It is a junction number, because it is equal to n+sod(n) for n = 11021221120094 and 11021221120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021221120123) 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, 7250802609 + ... + 7250804128.

Almost surely, 2^{11021221120120} is an apocalyptic number.

11021221120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021221120120 is an abundant number, since it is smaller than the sum of its proper divisors (15081671008280).

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

11021221120120 is a wasteful number, since it uses less digits than its factorization.

11021221120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14501606767 (or 14501606763 counting only the distinct ones).

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

Adding to 11021221120120 its reverse (2102112212011), we get a palindrome (13123333332131).

The spelling of 11021221120120 in words is "eleven trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty".