20113010220 has 24 divisors (see below), whose sum is σ = 56316428784. Its totient is φ = 5363469376.

The previous prime is 20113010173. The next prime is 20113010249. The reversal of 20113010220 is 2201031102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20113010196 and 20113010205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167608359 + ... + 167608478.

It is an arithmetic number, because the mean of its divisors is an integer number (2346517866).

Almost surely, 2^20113010220 is an apocalyptic number.

20113010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113010220 is an abundant number, since it is smaller than the sum of its proper divisors (36203418564).

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

20113010220 is a wasteful number, since it uses less digits than its factorization.

20113010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335216849 (or 335216847 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20113010220 its reverse (2201031102), we get a palindrome (22314041322).

The spelling of 20113010220 in words is "twenty billion, one hundred thirteen million, ten thousand, two hundred twenty".