20333100220 has 72 divisors (see below), whose sum is σ = 43555258656. Its totient is φ = 7972672512.

The previous prime is 20333100199. The next prime is 20333100247. The reversal of 20333100220 is 2200133302.

It is a junction number, because it is equal to n+sod(n) for n = 20333100194 and 20333100203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26303754 + ... + 26304526.

It is an arithmetic number, because the mean of its divisors is an integer number (604934148).

Almost surely, 2^20333100220 is an apocalyptic number.

20333100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20333100220 is an abundant number, since it is smaller than the sum of its proper divisors (23222158436).

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

20333100220 is a wasteful number, since it uses less digits than its factorization.

20333100220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20333100220 its reverse (2200133302), we get a palindrome (22533233522).

The spelling of 20333100220 in words is "twenty billion, three hundred thirty-three million, one hundred thousand, two hundred twenty".