11011121222020 has 24 divisors (see below), whose sum is σ = 24483551894424. Its totient is φ = 4145363283456.

The previous prime is 11011121221999. The next prime is 11011121222029. The reversal of 11011121222020 is 2022212111011.

It can be written as a sum of positive squares in 4 ways, for example, as 4683441343876 + 6327679878144 = 2164126^2 + 2515488^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11011121221985 and 11011121222003.

It is not an unprimeable number, because it can be changed into a prime (11011121222029) 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, 16192824987 + ... + 16192825666.

It is an arithmetic number, because the mean of its divisors is an integer number (1020147995601).

Almost surely, 2^{11011121222020} is an apocalyptic number.

11011121222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11011121222020 is an abundant number, since it is smaller than the sum of its proper divisors (13472430672404).

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

11011121222020 is a wasteful number, since it uses less digits than its factorization.

11011121222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32385650679 (or 32385650677 counting only the distinct ones).

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

Adding to 11011121222020 its reverse (2022212111011), we get a palindrome (13033333333031).

The spelling of 11011121222020 in words is "eleven trillion, eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, twenty".