2212134323540 has 12 divisors (see below), whose sum is σ = 4645482079476. Its totient is φ = 884853729408.

The previous prime is 2212134323533. The next prime is 2212134323551. The reversal of 2212134323540 is 453234312122.

It can be written as a sum of positive squares in 2 ways, for example, as 567292163344 + 1644842160196 = 753188^2 + 1282514^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212134323497 and 2212134323506.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 55303358069 + ... + 55303358108.

It is an arithmetic number, because the mean of its divisors is an integer number (387123506623).

Almost surely, 2^{2212134323540} is an apocalyptic number.

2212134323540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212134323540 is an abundant number, since it is smaller than the sum of its proper divisors (2433347755936).

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

2212134323540 is a wasteful number, since it uses less digits than its factorization.

2212134323540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110606716186 (or 110606716184 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 2212134323540 its reverse (453234312122), we get a palindrome (2665368635662).

The spelling of 2212134323540 in words is "two trillion, two hundred twelve billion, one hundred thirty-four million, three hundred twenty-three thousand, five hundred forty".