220011433220 has 24 divisors (see below), whose sum is σ = 462910834008. Its totient is φ = 87835654400.

The previous prime is 220011433219. The next prime is 220011433231. The reversal of 220011433220 is 22334110022.

It can be written as a sum of positive squares in 4 ways, for example, as 50545830976 + 169465602244 = 224824^2 + 411662^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 220011433192 and 220011433201.

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, 10546751 + ... + 10567590.

It is an arithmetic number, because the mean of its divisors is an integer number (19287951417).

Almost surely, 2^220011433220 is an apocalyptic number.

220011433220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220011433220 is an abundant number, since it is smaller than the sum of its proper divisors (242899400788).

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

220011433220 is a wasteful number, since it uses less digits than its factorization.

220011433220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21114871 (or 21114869 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220011433220 its reverse (22334110022), we get a palindrome (242345543242).

The spelling of 220011433220 in words is "two hundred twenty billion, eleven million, four hundred thirty-three thousand, two hundred twenty".