22211112200020 has 12 divisors (see below), whose sum is σ = 46643335620084. Its totient is φ = 8884444880000.

The previous prime is 22211112199963. The next prime is 22211112200021. The reversal of 22211112200020 is 2000221111222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13577176217284 + 8633935982736 = 3684722^2 + 2938356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22211112199967 and 22211112200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211112200021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555277804981 + ... + 555277805020.

It is an arithmetic number, because the mean of its divisors is an integer number (3886944635007).

Almost surely, 2^{22211112200020} is an apocalyptic number.

22211112200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22211112200020 is an abundant number, since it is smaller than the sum of its proper divisors (24432223420064).

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

22211112200020 is a wasteful number, since it uses less digits than its factorization.

22211112200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110555610010 (or 1110555610008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22211112200020 its reverse (2000221111222), we get a palindrome (24211333311242).

The spelling of 22211112200020 in words is "twenty-two trillion, two hundred eleven billion, one hundred twelve million, two hundred thousand, twenty".