11321222020020 has 96 divisors (see below), whose sum is σ = 38423541421440. Its totient is φ = 2744538670080.

The previous prime is 11321222019977. The next prime is 11321222020021. The reversal of 11321222020020 is 2002022212311.

11321222020020 is a `hidden beast` number, since 1 + 13 + 212 + 220 + 200 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11321222019975 and 11321222020002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321222020021) 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, 952958877 + ... + 952970756.

It is an arithmetic number, because the mean of its divisors is an integer number (400245223140).

Almost surely, 2^{11321222020020} is an apocalyptic number.

11321222020020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321222020020 is an abundant number, since it is smaller than the sum of its proper divisors (27102319401420).

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

11321222020020 is a wasteful number, since it uses less digits than its factorization.

11321222020020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905929662 (or 1905929654 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11321222020020 its reverse (2002022212311), we get a palindrome (13323244232331).

The spelling of 11321222020020 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-two million, twenty thousand, twenty".