1212422112003 has 16 divisors (see below), whose sum is σ = 1651012070400. Its totient is φ = 791057912256.

The previous prime is 1212422111983. The next prime is 1212422112127. The reversal of 1212422112003 is 3002112242121.

It is a happy number.

It is not a de Polignac number, because 1212422112003 - 2⁴⁰ = 112910484227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212422112703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4761426 + ... + 5009592.

It is an arithmetic number, because the mean of its divisors is an integer number (103188254400).

Almost surely, 2^{1212422112003} is an apocalyptic number.

1212422112003 is a deficient number, since it is larger than the sum of its proper divisors (438589958397).

1212422112003 is a wasteful number, since it uses less digits than its factorization.

1212422112003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282866.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 1212422112003 its reverse (3002112242121), we get a palindrome (4214534354124).

The spelling of 1212422112003 in words is "one trillion, two hundred twelve billion, four hundred twenty-two million, one hundred twelve thousand, three".