1322220220231 has 4 divisors (see below), whose sum is σ = 1322224936264. Its totient is φ = 1322215504200.

The previous prime is 1322220220219. The next prime is 1322220220247. The reversal of 1322220220231 is 1320220222231.

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 1322220220231 - 2⁷ = 1322220220103 is a prime.

It is a super-2 number, since 2×1322220220231² (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 (1322220220931) 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, 1908960 + ... + 2507701.

It is an arithmetic number, because the mean of its divisors is an integer number (330556234066).

Almost surely, 2^{1322220220231} is an apocalyptic number.

1322220220231 is a deficient number, since it is larger than the sum of its proper divisors (4716033).

1322220220231 is an equidigital number, since it uses as much as digits as its factorization.

1322220220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4716032.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 1322220220231 its reverse (1320220222231), we get a palindrome (2642440442462).

It can be divided in two parts, 1322220 and 220231, that added together give a palindrome (1542451).

The spelling of 1322220220231 in words is "one trillion, three hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, two hundred thirty-one".