20200103220 has 48 divisors (see below), whose sum is σ = 61702135488. Its totient is φ = 4896994560.

The previous prime is 20200103201. The next prime is 20200103227. The reversal of 20200103220 is 2230100202.

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 = 20200103196 and 20200103205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20200103227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15302449 + ... + 15303768.

It is an arithmetic number, because the mean of its divisors is an integer number (1285461156).

Almost surely, 2^20200103220 is an apocalyptic number.

20200103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200103220 is an abundant number, since it is smaller than the sum of its proper divisors (41502032268).

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

20200103220 is a wasteful number, since it uses less digits than its factorization.

20200103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30606240 (or 30606238 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20200103220 its reverse (2230100202), we get a palindrome (22430203422).

The spelling of 20200103220 in words is "twenty billion, two hundred million, one hundred three thousand, two hundred twenty".