1322220201311 has 4 divisors (see below), whose sum is σ = 1331732577000. Its totient is φ = 1312707825624.

The previous prime is 1322220201259. The next prime is 1322220201353. The reversal of 1322220201311 is 1131020222231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1322220201311 is a prime.

It is a super-2 number, since 2×1322220201311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322220201361) 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, 4756187636 + ... + 4756187913.

It is an arithmetic number, because the mean of its divisors is an integer number (332933144250).

Almost surely, 2^{1322220201311} is an apocalyptic number.

1322220201311 is a deficient number, since it is larger than the sum of its proper divisors (9512375689).

1322220201311 is an equidigital number, since it uses as much as digits as its factorization.

1322220201311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9512375688.

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

Adding to 1322220201311 its reverse (1131020222231), we get a palindrome (2453240423542).

The spelling of 1322220201311 in words is "one trillion, three hundred twenty-two billion, two hundred twenty million, two hundred one thousand, three hundred eleven".