22043222031 has 4 divisors (see below), whose sum is σ = 29390962712. Its totient is φ = 14695481352.

The previous prime is 22043221973. The next prime is 22043222051. The reversal of 22043222031 is 13022234022.

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

It is not a de Polignac number, because 22043222031 - 2⁷ = 22043221903 is a prime.

It is a super-2 number, since 2×22043222031² (a number of 21 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 = 22043221989 and 22043222007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22043222051) 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, 3673870336 + ... + 3673870341.

It is an arithmetic number, because the mean of its divisors is an integer number (7347740678).

Almost surely, 2^22043222031 is an apocalyptic number.

22043222031 is a deficient number, since it is larger than the sum of its proper divisors (7347740681).

22043222031 is an equidigital number, since it uses as much as digits as its factorization.

22043222031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7347740680.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 22043222031 its reverse (13022234022), we get a palindrome (35065456053).

The spelling of 22043222031 in words is "twenty-two billion, forty-three million, two hundred twenty-two thousand, thirty-one".