11122001222020 has 48 divisors (see below), whose sum is σ = 25159397966640. Its totient is φ = 4105513322496.

The previous prime is 11122001221999. The next prime is 11122001222063. The reversal of 11122001222020 is 2022210022111.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2293401302404 + 8828599919616 = 1514398^2 + 2971296^2 .

It is a super-2 number, since 2×11122001222020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11122001221985 and 11122001222003.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4583505 + ... + 6576664.

It is an arithmetic number, because the mean of its divisors is an integer number (524154124305).

Almost surely, 2^{11122001222020} is an apocalyptic number.

11122001222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122001222020 is an abundant number, since it is smaller than the sum of its proper divisors (14037396744620).

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

11122001222020 is a wasteful number, since it uses less digits than its factorization.

11122001222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11164024 (or 11164022 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11122001222020 its reverse (2022210022111), we get a palindrome (13144211244131).

The spelling of 11122001222020 in words is "eleven trillion, one hundred twenty-two billion, one million, two hundred twenty-two thousand, twenty".