20001020222112 has 96 divisors (see below), whose sum is σ = 55773004795200. Its totient is φ = 6258165608448.

The previous prime is 20001020222039. The next prime is 20001020222147. The reversal of 20001020222112 is 21122202010002.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 20001020222091 and 20001020222100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50101513 + ... + 50499144.

It is an arithmetic number, because the mean of its divisors is an integer number (580968799950).

Almost surely, 2^{20001020222112} is an apocalyptic number.

It is an amenable number.

20001020222112 is an abundant number, since it is smaller than the sum of its proper divisors (35771984573088).

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

20001020222112 is a wasteful number, since it uses less digits than its factorization.

20001020222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100600798 (or 100600790 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20001020222112 its reverse (21122202010002), we get a palindrome (41123222232114).

The spelling of 20001020222112 in words is "twenty trillion, one billion, twenty million, two hundred twenty-two thousand, one hundred twelve".