1212311042422 has 8 divisors (see below), whose sum is σ = 1914175330200. Its totient is φ = 574252599024.

The previous prime is 1212311042419. The next prime is 1212311042491. The reversal of 1212311042422 is 2242401132121.

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

It is a congruent number.

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, 15951461047 + ... + 15951461122.

It is an arithmetic number, because the mean of its divisors is an integer number (239271916275).

Almost surely, 2^{1212311042422} is an apocalyptic number.

1212311042422 is a deficient number, since it is larger than the sum of its proper divisors (701864287778).

1212311042422 is a wasteful number, since it uses less digits than its factorization.

1212311042422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31902922190.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 1212311042422 its reverse (2242401132121), we get a palindrome (3454712174543).

The spelling of 1212311042422 in words is "one trillion, two hundred twelve billion, three hundred eleven million, forty-two thousand, four hundred twenty-two".