1322200123231 has 4 divisors (see below), whose sum is σ = 1423907825032. Its totient is φ = 1220492421432.

The previous prime is 1322200123207. The next prime is 1322200123243. The reversal of 1322200123231 is 1323210022231.

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-1322200123231 is a prime.

It is a super-2 number, since 2×1322200123231² (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 (1322200123201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50853850881 + ... + 50853850906.

It is an arithmetic number, because the mean of its divisors is an integer number (355976956258).

Almost surely, 2^{1322200123231} is an apocalyptic number.

1322200123231 is a deficient number, since it is larger than the sum of its proper divisors (101707701801).

1322200123231 is a wasteful number, since it uses less digits than its factorization.

1322200123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101707701800.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1322200123231 its reverse (1323210022231), we get a palindrome (2645410145462).

The spelling of 1322200123231 in words is "one trillion, three hundred twenty-two billion, two hundred million, one hundred twenty-three thousand, two hundred thirty-one".