11222220022020 has 72 divisors (see below), whose sum is σ = 38903696080704. Its totient is φ = 2565078861888.

The previous prime is 11222220022009. The next prime is 11222220022021. The reversal of 11222220022020 is 2022002222211.

11222220022020 is a `hidden beast` number, since 1 + 1 + 2 + 222 + 200 + 220 + 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 = 11222220021984 and 11222220022002.

It is not an unprimeable number, because it can be changed into a prime (11222220022021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4453260654 + ... + 4453263173.

It is an arithmetic number, because the mean of its divisors is an integer number (540329112232).

Almost surely, 2^{11222220022020} is an apocalyptic number.

11222220022020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222220022020 is an abundant number, since it is smaller than the sum of its proper divisors (27681476058684).

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

11222220022020 is a wasteful number, since it uses less digits than its factorization.

11222220022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8906523849 (or 8906523844 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 11222220022020 its reverse (2022002222211), we get a palindrome (13244222244231).

The spelling of 11222220022020 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty million, twenty-two thousand, twenty".