1212220313203 has 2 divisors, whose sum is σ = 1212220313204. Its totient is φ = 1212220313202.

The previous prime is 1212220313191. The next prime is 1212220313209. The reversal of 1212220313203 is 3023130222121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212220313203 - 2¹³ = 1212220305011 is a prime.

It is a super-2 number, since 2×1212220313203² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212220313209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606110156601 + 606110156602.

It is an arithmetic number, because the mean of its divisors is an integer number (606110156602).

Almost surely, 2^{1212220313203} is an apocalyptic number.

1212220313203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212220313203 is an equidigital number, since it uses as much as digits as its factorization.

1212220313203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1212220313203 its reverse (3023130222121), we get a palindrome (4235350535324).

The spelling of 1212220313203 in words is "one trillion, two hundred twelve billion, two hundred twenty million, three hundred thirteen thousand, two hundred three".