20000020220 has 12 divisors (see below), whose sum is σ = 42000042504. Its totient is φ = 8000008080.

The previous prime is 20000020189. The next prime is 20000020237. The reversal of 20000020220 is 2202000002.

It is a junction number, because it is equal to n+sod(n) for n = 20000020198 and 20000020207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500000486 + ... + 500000525.

It is an arithmetic number, because the mean of its divisors is an integer number (3500003542).

Almost surely, 2^20000020220 is an apocalyptic number.

20000020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20000020220 is an abundant number, since it is smaller than the sum of its proper divisors (22000022284).

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

20000020220 is a wasteful number, since it uses less digits than its factorization.

20000020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000001020 (or 1000001018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 8.

Adding to 20000020220 its reverse (2202000002), we get a palindrome (22202020222).

The spelling of 20000020220 in words is "twenty billion, twenty thousand, two hundred twenty".