11021112120120 has 64 divisors (see below), whose sum is σ = 33063556285440. Its totient is φ = 2938943683200.

The previous prime is 11021112120077. The next prime is 11021112120121. The reversal of 11021112120120 is 2102121112011.

It is a happy number.

It is a super-2 number, since 2×11021112120120² (a number of 27 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11021112120120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021112120121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31900705 + ... + 32244335.

It is an arithmetic number, because the mean of its divisors is an integer number (516618066960).

Almost surely, 2^{11021112120120} is an apocalyptic number.

11021112120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021112120120 is an abundant number, since it is smaller than the sum of its proper divisors (22042444165320).

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

11021112120120 is a wasteful number, since it uses less digits than its factorization.

11021112120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610916 (or 610912 counting only the distinct ones).

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

Adding to 11021112120120 its reverse (2102121112011), we get a palindrome (13123233232131).

The spelling of 11021112120120 in words is "eleven trillion, twenty-one billion, one hundred twelve million, one hundred twenty thousand, one hundred twenty".