2212313222440 has 16 divisors (see below), whose sum is σ = 4977704750580. Its totient is φ = 884925288960.

The previous prime is 2212313222423. The next prime is 2212313222467. The reversal of 2212313222440 is 442223132122.

It can be written as a sum of positive squares in 2 ways, for example, as 2199508489476 + 12804732964 = 1483074^2 + 113158^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2212313222399 and 2212313222408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27653915241 + ... + 27653915320.

Almost surely, 2^{2212313222440} is an apocalyptic number.

2212313222440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212313222440 is an abundant number, since it is smaller than the sum of its proper divisors (2765391528140).

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

2212313222440 is a wasteful number, since it uses less digits than its factorization.

2212313222440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55307830572 (or 55307830568 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2212313222440 its reverse (442223132122), we get a palindrome (2654536354562).

The spelling of 2212313222440 in words is "two trillion, two hundred twelve billion, three hundred thirteen million, two hundred twenty-two thousand, four hundred forty".