22132312232231 has 4 divisors (see below), whose sum is σ = 23434212951792. Its totient is φ = 20830411512672.

The previous prime is 22132312232189. The next prime is 22132312232291. The reversal of 22132312232231 is 13223221323122.

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-22132312232231 is a prime.

It is a super-2 number, since 2×22132312232231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22132312232194 and 22132312232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132312232291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650950359755 + ... + 650950359788.

It is an arithmetic number, because the mean of its divisors is an integer number (5858553237948).

Almost surely, 2^{22132312232231} is an apocalyptic number.

22132312232231 is a deficient number, since it is larger than the sum of its proper divisors (1301900719561).

22132312232231 is a wasteful number, since it uses less digits than its factorization.

22132312232231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301900719560.

The product of its digits is 10368, while the sum is 29.

Adding to 22132312232231 its reverse (13223221323122), we get a palindrome (35355533555353).

The spelling of 22132312232231 in words is "twenty-two trillion, one hundred thirty-two billion, three hundred twelve million, two hundred thirty-two thousand, two hundred thirty-one".