11101022120 has 64 divisors (see below), whose sum is σ = 25567488000. Its totient is φ = 4335923200.

The previous prime is 11101022113. The next prime is 11101022123. The reversal of 11101022120 is 2122010111.

It is not an unprimeable number, because it can be changed into a prime (11101022123) 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, 837545 + ... + 850695.

It is an arithmetic number, because the mean of its divisors is an integer number (399492000).

Almost surely, 2^11101022120 is an apocalyptic number.

11101022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11101022120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12783744000).

11101022120 is an abundant number, since it is smaller than the sum of its proper divisors (14466465880).

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

11101022120 is a wasteful number, since it uses less digits than its factorization.

11101022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13658 (or 13654 counting only the distinct ones).

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

Adding to 11101022120 its reverse (2122010111), we get a palindrome (13223032231).

The spelling of 11101022120 in words is "eleven billion, one hundred one million, twenty-two thousand, one hundred twenty".