2212101012220 has 96 divisors (see below), whose sum is σ = 5201800938432. Its totient is φ = 783379200000.

The previous prime is 2212101012161. The next prime is 2212101012259. The reversal of 2212101012220 is 222101012122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2212101012194 and 2212101012203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 539400 + ... + 2171440.

It is an arithmetic number, because the mean of its divisors is an integer number (54185426442).

Almost surely, 2^{2212101012220} is an apocalyptic number.

2212101012220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2212101012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2600900469216).

2212101012220 is an abundant number, since it is smaller than the sum of its proper divisors (2989699926212).

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

2212101012220 is a wasteful number, since it uses less digits than its factorization.

2212101012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632223 (or 1632221 counting only the distinct ones).

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

Adding to 2212101012220 its reverse (222101012122), we get a palindrome (2434202024342).

The spelling of 2212101012220 in words is "two trillion, two hundred twelve billion, one hundred one million, twelve thousand, two hundred twenty".