20202001122220 has 12 divisors (see below), whose sum is σ = 42424202356704. Its totient is φ = 8080800448880.

The previous prime is 20202001122187. The next prime is 20202001122223. The reversal of 20202001122220 is 2222110020202.

It is a junction number, because it is equal to n+sod(n) for n = 20202001122194 and 20202001122203.

It is not an unprimeable number, because it can be changed into a prime (20202001122223) 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 3 ways as a sum of consecutive naturals, for example, 505050028036 + ... + 505050028075.

It is an arithmetic number, because the mean of its divisors is an integer number (3535350196392).

Almost surely, 2^{20202001122220} is an apocalyptic number.

20202001122220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20202001122220 is an abundant number, since it is smaller than the sum of its proper divisors (22222201234484).

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

20202001122220 is a wasteful number, since it uses less digits than its factorization.

20202001122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010100056120 (or 1010100056118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 20202001122220 its reverse (2222110020202), we get a palindrome (22424111142422).

The spelling of 20202001122220 in words is "twenty trillion, two hundred two billion, one million, one hundred twenty-two thousand, two hundred twenty".