100222020200020 has 12 divisors (see below), whose sum is σ = 210466242420084. Its totient is φ = 40088808080000.

The previous prime is 100222020200011. The next prime is 100222020200063. The reversal of 100222020200020 is 20002020222001.

It can be written as a sum of positive squares in 2 ways, for example, as 75929404207504 + 24292615992516 = 8713748^2 + 4928754^2 .

It is a congruent number.

It is an unprimeable number.

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, 2505550504981 + ... + 2505550505020.

It is an arithmetic number, because the mean of its divisors is an integer number (17538853535007).

Almost surely, 2^{100222020200020} is an apocalyptic number.

100222020200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222020200020 is an abundant number, since it is smaller than the sum of its proper divisors (110244222220064).

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

100222020200020 is a wasteful number, since it uses less digits than its factorization.

100222020200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011101010010 (or 5011101010008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 100222020200020 its reverse (20002020222001), we get a palindrome (120224040422021).

The spelling of 100222020200020 in words is "one hundred trillion, two hundred twenty-two billion, twenty million, two hundred thousand, twenty".