220111200202120 has 64 divisors (see below), whose sum is σ = 512350407529200. Its totient is φ = 85004711285760.

The previous prime is 220111200202093. The next prime is 220111200202129. The reversal of 220111200202120 is 21202002111022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 96543476527716 + 123567723674404 = 9825654^2 + 11116102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 220111200202094 and 220111200202103.

It is not an unprimeable number, because it can be changed into a prime (220111200202129) by changing a digit.

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, 22175310 + ... + 30528130.

Almost surely, 2^{220111200202120} is an apocalyptic number.

220111200202120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220111200202120 is an abundant number, since it is smaller than the sum of its proper divisors (292239207327080).

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

220111200202120 is a wasteful number, since it uses less digits than its factorization.

220111200202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8375578 (or 8375574 counting only the distinct ones).

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

Adding to 220111200202120 its reverse (21202002111022), we get a palindrome (241313202313142).

The spelling of 220111200202120 in words is "two hundred twenty trillion, one hundred eleven billion, two hundred million, two hundred two thousand, one hundred twenty".