100000020220 has 12 divisors (see below), whose sum is σ = 210000042504. Its totient is φ = 40000008080.

The previous prime is 100000020181. The next prime is 100000020229. The reversal of 100000020220 is 22020000001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000020229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500000486 + ... + 2500000525.

It is an arithmetic number, because the mean of its divisors is an integer number (17500003542).

Almost surely, 2^100000020220 is an apocalyptic number.

100000020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000020220 is an abundant number, since it is smaller than the sum of its proper divisors (110000022284).

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

100000020220 is a wasteful number, since it uses less digits than its factorization.

100000020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000001020 (or 5000001018 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

Adding to 100000020220 its reverse (22020000001), we get a palindrome (122020020221).

The spelling of 100000020220 in words is "one hundred billion, twenty thousand, two hundred twenty".