1220011321013 has 8 divisors (see below), whose sum is σ = 1264493848800. Its totient is φ = 1175689671408.

The previous prime is 1220011320953. The next prime is 1220011321031. The reversal of 1220011321013 is 3101231100221.

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

It is not a de Polignac number, because 1220011321013 - 2⁶ = 1220011320949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220011320982 and 1220011321000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220011321073) 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, 40204103 + ... + 40234436.

It is an arithmetic number, because the mean of its divisors is an integer number (158061731100).

Almost surely, 2^{1220011321013} is an apocalyptic number.

It is an amenable number.

1220011321013 is a deficient number, since it is larger than the sum of its proper divisors (44482527787).

1220011321013 is an equidigital number, since it uses as much as digits as its factorization.

1220011321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80439091.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1220011321013 its reverse (3101231100221), we get a palindrome (4321242421234).

The spelling of 1220011321013 in words is "one trillion, two hundred twenty billion, eleven million, three hundred twenty-one thousand, thirteen".