11011222211020 has 96 divisors (see below), whose sum is σ = 23718441922560. Its totient is φ = 4291686685440.

The previous prime is 11011222210993. The next prime is 11011222211023. The reversal of 11011222211020 is 2011222211011.

It is a junction number, because it is equal to n+sod(n) for n = 11011222210985 and 11011222211003.

It is not an unprimeable number, because it can be changed into a prime (11011222211023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 633220486 + ... + 633237874.

It is an arithmetic number, because the mean of its divisors is an integer number (247067103360).

Almost surely, 2^{11011222211020} is an apocalyptic number.

11011222211020 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 11011222211020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11859220961280).

11011222211020 is an abundant number, since it is smaller than the sum of its proper divisors (12707219711540).

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

11011222211020 is a wasteful number, since it uses less digits than its factorization.

11011222211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19175 (or 19173 counting only the distinct ones).

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

Adding to 11011222211020 its reverse (2011222211011), we get a palindrome (13022444422031).

Subtracting from 11011222211020 its reverse (2011222211011), we obtain a palindrome (9000000000009).

The spelling of 11011222211020 in words is "eleven trillion, eleven billion, two hundred twenty-two million, two hundred eleven thousand, twenty".