220100120101212 has 96 divisors (see below), whose sum is σ = 556784979362304. Its totient is φ = 67268556000000.

The previous prime is 220100120101193. The next prime is 220100120101247. The reversal of 220100120101212 is 212101021001022.

It is a super-2 number, since 2×220100120101212² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220100120101191 and 220100120101200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 264613318 + ... + 265443794.

It is an arithmetic number, because the mean of its divisors is an integer number (5799843535024).

Almost surely, 2^{220100120101212} 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 220100120101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278392489681152).

220100120101212 is an abundant number, since it is smaller than the sum of its proper divisors (336684859261092).

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

220100120101212 is a wasteful number, since it uses less digits than its factorization.

220100120101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841899 (or 841897 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220100120101212 its reverse (212101021001022), we get a palindrome (432201141102234).

The spelling of 220100120101212 in words is "two hundred twenty trillion, one hundred billion, one hundred twenty million, one hundred one thousand, two hundred twelve".