11122020020 has 24 divisors (see below), whose sum is σ = 23408983584. Its totient is φ = 4438762016.

The previous prime is 11122019983. The next prime is 11122020053. The reversal of 11122020020 is 2002022111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11122019983 and 11122020010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618794 + ... + 636513.

It is an arithmetic number, because the mean of its divisors is an integer number (975374316).

Almost surely, 2^11122020020 is an apocalyptic number.

11122020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122020020 is an abundant number, since it is smaller than the sum of its proper divisors (12286963564).

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

11122020020 is a wasteful number, since it uses less digits than its factorization.

11122020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255759 (or 1255757 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 11122020020 its reverse (2002022111), we get a palindrome (13124042131).

The spelling of 11122020020 in words is "eleven billion, one hundred twenty-two million, twenty thousand, twenty".