1212403204222 has 32 divisors (see below), whose sum is σ = 2126957842944. Its totient is φ = 507465756000.

The previous prime is 1212403204213. The next prime is 1212403204223. The reversal of 1212403204222 is 2224023042121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212403204223) 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, 6103447 + ... + 6298957.

It is an arithmetic number, because the mean of its divisors is an integer number (66467432592).

Almost surely, 2^{1212403204222} is an apocalyptic number.

1212403204222 is a deficient number, since it is larger than the sum of its proper divisors (914554638722).

1212403204222 is a wasteful number, since it uses less digits than its factorization.

1212403204222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205864.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1212403204222 its reverse (2224023042121), we get a palindrome (3436426246343).

The spelling of 1212403204222 in words is "one trillion, two hundred twelve billion, four hundred three million, two hundred four thousand, two hundred twenty-two".