1212223112042 has 8 divisors (see below), whose sum is σ = 1818487466496. Its totient is φ = 606060623212.

The previous prime is 1212223112027. The next prime is 1212223112059. The reversal of 1212223112042 is 2402113222121.

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 = 1212223111999 and 1212223112017.

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, 25436648 + ... + 25484259.

It is an arithmetic number, because the mean of its divisors is an integer number (227310933312).

Almost surely, 2^{1212223112042} is an apocalyptic number.

1212223112042 is a deficient number, since it is larger than the sum of its proper divisors (606264354454).

1212223112042 is a wasteful number, since it uses less digits than its factorization.

1212223112042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50932812.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1212223112042 its reverse (2402113222121), we get a palindrome (3614336334163).

The spelling of 1212223112042 in words is "one trillion, two hundred twelve billion, two hundred twenty-three million, one hundred twelve thousand, forty-two".