13220020312211 has 4 divisors (see below), whose sum is σ = 13222993111872. Its totient is φ = 13217047512552.

The previous prime is 13220020312183. The next prime is 13220020312217. The reversal of 13220020312211 is 11221302002231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13220020312211 - 2²² = 13220016117907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13220020312217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1486393160 + ... + 1486402053.

It is an arithmetic number, because the mean of its divisors is an integer number (3305748277968).

Almost surely, 2^{13220020312211} is an apocalyptic number.

13220020312211 is a deficient number, since it is larger than the sum of its proper divisors (2972799661).

13220020312211 is an equidigital number, since it uses as much as digits as its factorization.

13220020312211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2972799660.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13220020312211 its reverse (11221302002231), we get a palindrome (24441322314442).

The spelling of 13220020312211 in words is "thirteen trillion, two hundred twenty billion, twenty million, three hundred twelve thousand, two hundred eleven".