1212204110313 has 32 divisors (see below), whose sum is σ = 1849602908160. Its totient is φ = 691775441280.

The previous prime is 1212204110303. The next prime is 1212204110323. The reversal of 1212204110313 is 3130114022121.

It is an interprime number because it is at equal distance from previous prime (1212204110303) and next prime (1212204110323).

It is not a de Polignac number, because 1212204110313 - 2⁴ = 1212204110297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1212204110313.

It is not an unprimeable number, because it can be changed into a prime (1212204110303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125860008 + ... + 125869638.

It is an arithmetic number, because the mean of its divisors is an integer number (57800090880).

Almost surely, 2^{1212204110313} is an apocalyptic number.

It is an amenable number.

1212204110313 is a deficient number, since it is larger than the sum of its proper divisors (637398797847).

1212204110313 is an equidigital number, since it uses as much as digits as its factorization.

1212204110313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16917.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1212204110313 its reverse (3130114022121), we get a palindrome (4342318132434).

The spelling of 1212204110313 in words is "one trillion, two hundred twelve billion, two hundred four million, one hundred ten thousand, three hundred thirteen".