1220435244213 has 4 divisors (see below), whose sum is σ = 1627246992288. Its totient is φ = 813623496140.

The previous prime is 1220435244209. The next prime is 1220435244227. The reversal of 1220435244213 is 3124425340221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1220435244213 - 2² = 1220435244209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220435244283) 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 3 ways as a sum of consecutive naturals, for example, 203405874033 + ... + 203405874038.

It is an arithmetic number, because the mean of its divisors is an integer number (406811748072).

Almost surely, 2^{1220435244213} is an apocalyptic number.

It is an amenable number.

1220435244213 is a deficient number, since it is larger than the sum of its proper divisors (406811748075).

1220435244213 is an equidigital number, since it uses as much as digits as its factorization.

1220435244213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406811748074.

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 1220435244213 in words is "one trillion, two hundred twenty billion, four hundred thirty-five million, two hundred forty-four thousand, two hundred thirteen".