10221220202020 has 96 divisors (see below), whose sum is σ = 21720222720000. Its totient is φ = 4039961702400.

The previous prime is 10221220201903. The next prime is 10221220202033. The reversal of 10221220202020 is 2020202212201.

It is a super-2 number, since 2×10221220202020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10221220201985 and 10221220202003.

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 31 ways as a sum of consecutive naturals, for example, 2742477397 + ... + 2742481123.

It is an arithmetic number, because the mean of its divisors is an integer number (226252320000).

Almost surely, 2^{10221220202020} is an apocalyptic number.

10221220202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221220202020 is an abundant number, since it is smaller than the sum of its proper divisors (11499002517980).

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

10221220202020 is a wasteful number, since it uses less digits than its factorization.

10221220202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173 (or 6171 counting only the distinct ones).

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

Adding to 10221220202020 its reverse (2020202212201), we get a palindrome (12241422414221).

The spelling of 10221220202020 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty million, two hundred two thousand, twenty".