100222111122020 has 12 divisors (see below), whose sum is σ = 210466433356284. Its totient is φ = 40088844448800.

The previous prime is 100222111121941. The next prime is 100222111122053. The reversal of 100222111122020 is 20221111222001.

It can be written as a sum of positive squares in 2 ways, for example, as 65899456151104 + 34322654970916 = 8117848^2 + 5858554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 100222111122020.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2505552778031 + ... + 2505552778070.

It is an arithmetic number, because the mean of its divisors is an integer number (17538869446357).

Almost surely, 2^{100222111122020} is an apocalyptic number.

100222111122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100222111122020 is an abundant number, since it is smaller than the sum of its proper divisors (110244322234264).

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

100222111122020 is a wasteful number, since it uses less digits than its factorization.

100222111122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5011105556110 (or 5011105556108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100222111122020 its reverse (20221111222001), we get a palindrome (120443222344021).

The spelling of 100222111122020 in words is "one hundred trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, twenty".