1320220331211 has 32 divisors (see below), whose sum is σ = 1871320872960. Its totient is φ = 825055593984.

The previous prime is 1320220331173. The next prime is 1320220331231. The reversal of 1320220331211 is 1121330220231.

It is not a de Polignac number, because 1320220331211 - 2⁹ = 1320220330699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320220331231) 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, 12724701 + ... + 12828033.

It is an arithmetic number, because the mean of its divisors is an integer number (58478777280).

Almost surely, 2^{1320220331211} is an apocalyptic number.

1320220331211 is a deficient number, since it is larger than the sum of its proper divisors (551100541749).

1320220331211 is a wasteful number, since it uses less digits than its factorization.

1320220331211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104355.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1320220331211 its reverse (1121330220231), we get a palindrome (2441550551442).

The spelling of 1320220331211 in words is "one trillion, three hundred twenty billion, two hundred twenty million, three hundred thirty-one thousand, two hundred eleven".