20020222020 has 48 divisors (see below), whose sum is σ = 56611654848. Its totient is φ = 5285865600.

The previous prime is 20020221979. The next prime is 20020222049. The reversal of 20020222020 is 2022202002.

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 = 20020221987 and 20020222005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1645774 + ... + 1657893.

It is an arithmetic number, because the mean of its divisors is an integer number (1179409476).

Almost surely, 2^20020222020 is an apocalyptic number.

20020222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20020222020 is an abundant number, since it is smaller than the sum of its proper divisors (36591432828).

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

20020222020 is a wasteful number, since it uses less digits than its factorization.

20020222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303780 (or 3303778 counting only the distinct ones).

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

Adding to 20020222020 its reverse (2022202002), we get a palindrome (22042424022).

It can be divided in two parts, 200202 and 22020, that added together give a palindrome (222222).

The spelling of 20020222020 in words is "twenty billion, twenty million, two hundred twenty-two thousand, twenty".