220120102216 has 24 divisors (see below), whose sum is σ = 480108897270. Its totient is φ = 94337186496.

The previous prime is 220120102199. The next prime is 220120102217. The reversal of 220120102216 is 612201021022.

It can be written as a sum of positive squares in only one way, i.e., 192154229316 + 27965872900 = 438354^2 + 167230^2 .

It is a super-2 number, since 2×220120102216² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220120102193 and 220120102202.

It is not an unprimeable number, because it can be changed into a prime (220120102217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280765045 + ... + 280765828.

Almost surely, 2^220120102216 is an apocalyptic number.

It is an amenable number.

220120102216 is an abundant number, since it is smaller than the sum of its proper divisors (259988795054).

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

220120102216 is a wasteful number, since it uses less digits than its factorization.

220120102216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561530893 (or 561530882 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 220120102216 its reverse (612201021022), we get a palindrome (832321123238).

The spelling of 220120102216 in words is "two hundred twenty billion, one hundred twenty million, one hundred two thousand, two hundred sixteen".