20100130220 has 24 divisors (see below), whose sum is σ = 43006695984. Its totient is φ = 7888352576.

The previous prime is 20100130201. The next prime is 20100130243. The reversal of 20100130220 is 2203100102.

It is a happy number.

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, 9480134 + ... + 9482253.

It is an arithmetic number, because the mean of its divisors is an integer number (1791945666).

Almost surely, 2^20100130220 is an apocalyptic number.

20100130220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100130220 is an abundant number, since it is smaller than the sum of its proper divisors (22906565764).

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

20100130220 is a wasteful number, since it uses less digits than its factorization.

20100130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18962449 (or 18962447 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20100130220 its reverse (2203100102), we get a palindrome (22303230322).

The spelling of 20100130220 in words is "twenty billion, one hundred million, one hundred thirty thousand, two hundred twenty".