22244333131 has 4 divisors (see below), whose sum is σ = 22248014112. Its totient is φ = 22240652152.

The previous prime is 22244333129. The next prime is 22244333143. The reversal of 22244333131 is 13133344222.

It is a happy number.

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 22244333131 - 2¹ = 22244333129 is a prime.

It is a super-2 number, since 2×22244333131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22244333131.

It is not an unprimeable number, because it can be changed into a prime (22244333161) 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, 1831411 + ... + 1843516.

It is an arithmetic number, because the mean of its divisors is an integer number (5562003528).

Almost surely, 2^22244333131 is an apocalyptic number.

22244333131 is a deficient number, since it is larger than the sum of its proper divisors (3680981).

22244333131 is an equidigital number, since it uses as much as digits as its factorization.

22244333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680980.

The product of its digits is 10368, while the sum is 28.

Adding to 22244333131 its reverse (13133344222), we get a palindrome (35377677353).

The spelling of 22244333131 in words is "twenty-two billion, two hundred forty-four million, three hundred thirty-three thousand, one hundred thirty-one".