2212102011220 has 12 divisors (see below), whose sum is σ = 4645414223604. Its totient is φ = 884840804480.

The previous prime is 2212102011187. The next prime is 2212102011253. The reversal of 2212102011220 is 221102012122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2212102011187) and next prime (2212102011253).

It can be written as a sum of positive squares in 2 ways, for example, as 1646976955716 + 565125055504 = 1283346^2 + 751748^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212102011194 and 2212102011203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55302550261 + ... + 55302550300.

It is an arithmetic number, because the mean of its divisors is an integer number (387117851967).

Almost surely, 2^{2212102011220} is an apocalyptic number.

2212102011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212102011220 is an abundant number, since it is smaller than the sum of its proper divisors (2433312212384).

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

2212102011220 is a wasteful number, since it uses less digits than its factorization.

2212102011220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110605100570 (or 110605100568 counting only the distinct ones).

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

Adding to 2212102011220 its reverse (221102012122), we get a palindrome (2433204023342).

The spelling of 2212102011220 in words is "two trillion, two hundred twelve billion, one hundred two million, eleven thousand, two hundred twenty".