1221404410313 has 8 divisors (see below), whose sum is σ = 1247517368832. Its totient is φ = 1195296686496.

The previous prime is 1221404410241. The next prime is 1221404410327. The reversal of 1221404410313 is 3130144041221.

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

It is a cyclic number.

It is not a de Polignac number, because 1221404410313 - 2¹² = 1221404406217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1221404410013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835220 + ... + 1772117.

It is an arithmetic number, because the mean of its divisors is an integer number (155939671104).

Almost surely, 2^{1221404410313} is an apocalyptic number.

It is an amenable number.

1221404410313 is a deficient number, since it is larger than the sum of its proper divisors (26112958519).

1221404410313 is an equidigital number, since it uses as much as digits as its factorization.

1221404410313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617351.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1221404410313 its reverse (3130144041221), we get a palindrome (4351548451534).

The spelling of 1221404410313 in words is "one trillion, two hundred twenty-one billion, four hundred four million, four hundred ten thousand, three hundred thirteen".