2212444220340 has 48 divisors (see below), whose sum is σ = 6194910395520. Its totient is φ = 589978784640.

The previous prime is 2212444220321. The next prime is 2212444220341. The reversal of 2212444220340 is 430224442122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2212444220298 and 2212444220307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212444220341) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8832625 + ... + 9079655.

It is an arithmetic number, because the mean of its divisors is an integer number (129060633240).

Almost surely, 2^{2212444220340} is an apocalyptic number.

2212444220340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212444220340 is an abundant number, since it is smaller than the sum of its proper divisors (3982466175180).

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

2212444220340 is a wasteful number, since it uses less digits than its factorization.

2212444220340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396312 (or 396310 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 2212444220340 its reverse (430224442122), we get a palindrome (2642668662462).

The spelling of 2212444220340 in words is "two trillion, two hundred twelve billion, four hundred forty-four million, two hundred twenty thousand, three hundred forty".