220111011202212 has 144 divisors (see below), whose sum is σ = 618117315735360. Its totient is φ = 67706114112000.

The previous prime is 220111011202211. The next prime is 220111011202223. The reversal of 220111011202212 is 212202110111022.

220111011202212 is a `hidden beast` number, since 220 + 1 + 1 + 101 + 120 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (220111011202211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 58987212 + ... + 62607612.

Almost surely, 2^{220111011202212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220111011202212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309058657867680).

220111011202212 is an abundant number, since it is smaller than the sum of its proper divisors (398006304533148).

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

220111011202212 is a wasteful number, since it uses less digits than its factorization.

220111011202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623771 (or 3623750 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 220111011202212 its reverse (212202110111022), we get a palindrome (432313121313234).

The spelling of 220111011202212 in words is "two hundred twenty trillion, one hundred eleven billion, eleven million, two hundred two thousand, two hundred twelve".