20202232022220 has 96 divisors (see below), whose sum is σ = 57051696683520. Its totient is φ = 5341106234880.

The previous prime is 20202232022173. The next prime is 20202232022221. The reversal of 20202232022220 is 2222023220202.

It is a super-2 number, since 2×20202232022220² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20202232022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7146216 + ... + 9564144.

It is an arithmetic number, because the mean of its divisors is an integer number (594288507120).

Almost surely, 2^{20202232022220} is an apocalyptic number.

20202232022220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202232022220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28525848341760).

20202232022220 is an abundant number, since it is smaller than the sum of its proper divisors (36849464661300).

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

20202232022220 is a wasteful number, since it uses less digits than its factorization.

20202232022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419135 (or 2419133 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 20202232022220 its reverse (2222023220202), we get a palindrome (22424255242422).

The spelling of 20202232022220 in words is "twenty trillion, two hundred two billion, two hundred thirty-two million, twenty-two thousand, two hundred twenty".