20022012020 has 24 divisors (see below), whose sum is σ = 43182611304. Its totient is φ = 7792350336.

The previous prime is 20022012019. The next prime is 20022012047. The reversal of 20022012020 is 2021022002.

It can be written as a sum of positive squares in 4 ways, for example, as 8420998756 + 11601013264 = 91766^2 + 107708^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20022011992 and 20022012010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13527647 + ... + 13529126.

It is an arithmetic number, because the mean of its divisors is an integer number (1799275471).

Almost surely, 2^20022012020 is an apocalyptic number.

20022012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022012020 is an abundant number, since it is smaller than the sum of its proper divisors (23160599284).

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

20022012020 is a wasteful number, since it uses less digits than its factorization.

20022012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27056819 (or 27056817 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 20022012020 its reverse (2021022002), we get a palindrome (22043034022).

The spelling of 20022012020 in words is "twenty billion, twenty-two million, twelve thousand, twenty".