20002220220 has 24 divisors (see below), whose sum is σ = 56006216784. Its totient is φ = 5333925376.

The previous prime is 20002220207. The next prime is 20002220243. The reversal of 20002220220 is 2202220002.

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 = 20002220196 and 20002220205.

It is a congruent 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, 166685109 + ... + 166685228.

It is an arithmetic number, because the mean of its divisors is an integer number (2333592366).

Almost surely, 2^20002220220 is an apocalyptic number.

20002220220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002220220 is an abundant number, since it is smaller than the sum of its proper divisors (36003996564).

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

20002220220 is a wasteful number, since it uses less digits than its factorization.

20002220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333370349 (or 333370347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20002220220 its reverse (2202220002), we get a palindrome (22204440222).

The spelling of 20002220220 in words is "twenty billion, two million, two hundred twenty thousand, two hundred twenty".