1312220212203 has 8 divisors (see below), whose sum is σ = 1790315948608. Its totient is φ = 854468975304.

The previous prime is 1312220212151. The next prime is 1312220212213. The reversal of 1312220212203 is 3022120222131.

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

It is not a de Polignac number, because 1312220212203 - 2⁸ = 1312220211947 is a prime.

It is a super-2 number, since 2×1312220212203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312220212203.

It is not an unprimeable number, because it can be changed into a prime (1312220212213) 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 in 7 ways as a sum of consecutive naturals, for example, 5086124725 + ... + 5086124982.

It is an arithmetic number, because the mean of its divisors is an integer number (223789493576).

Almost surely, 2^{1312220212203} is an apocalyptic number.

1312220212203 is a deficient number, since it is larger than the sum of its proper divisors (478095736405).

1312220212203 is a wasteful number, since it uses less digits than its factorization.

1312220212203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172249753.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1312220212203 its reverse (3022120222131), we get a palindrome (4334340434334).

The spelling of 1312220212203 in words is "one trillion, three hundred twelve billion, two hundred twenty million, two hundred twelve thousand, two hundred three".