20202310222020 has 72 divisors (see below), whose sum is σ = 61308804951576. Its totient is φ = 5384780401152.

The previous prime is 20202310222019. The next prime is 20202310222079. The reversal of 20202310222020 is 2022201320202.

It can be written as a sum of positive squares in 4 ways, for example, as 1808659178496 + 18393651043524 = 1344864^2 + 4288782^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20202310221984 and 20202310222002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25677267 + ... + 26452346.

It is an arithmetic number, because the mean of its divisors is an integer number (851511179883).

Almost surely, 2^{20202310222020} is an apocalyptic number.

20202310222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202310222020 is an abundant number, since it is smaller than the sum of its proper divisors (41106494729556).

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

20202310222020 is a wasteful number, since it uses less digits than its factorization.

20202310222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52131781 (or 52131776 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20202310222020 its reverse (2022201320202), we get a palindrome (22224511542222).

The spelling of 20202310222020 in words is "twenty trillion, two hundred two billion, three hundred ten million, two hundred twenty-two thousand, twenty".