1222312443442 has 8 divisors (see below), whose sum is σ = 1834858713600. Its totient is φ = 610692872244.

The previous prime is 1222312443433. The next prime is 1222312443533. The reversal of 1222312443442 is 2443442132221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1222312443398 and 1222312443407.

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, 231671442 + ... + 231676717.

It is an arithmetic number, because the mean of its divisors is an integer number (229357339200).

Almost surely, 2^{1222312443442} is an apocalyptic number.

1222312443442 is a deficient number, since it is larger than the sum of its proper divisors (612546270158).

1222312443442 is a wasteful number, since it uses less digits than its factorization.

1222312443442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463349480.

The product of its digits is 73728, while the sum is 34.

Adding to 1222312443442 its reverse (2443442132221), we get a palindrome (3665754575663).

The spelling of 1222312443442 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, four hundred forty-three thousand, four hundred forty-two".