22142432331 has 24 divisors (see below), whose sum is σ = 32275488960. Its totient is φ = 14627199600.

The previous prime is 22142432297. The next prime is 22142432353. The reversal of 22142432331 is 13323424122.

22142432331 is a `hidden beast` number, since 2 + 2 + 1 + 424 + 3 + 233 + 1 = 666.

It is not a de Polignac number, because 22142432331 - 2¹⁵ = 22142399563 is a prime.

It is a super-2 number, since 2×22142432331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22142432295 and 22142432304.

It is not an unprimeable number, because it can be changed into a prime (22142432381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 801100 + ... + 828278.

It is an arithmetic number, because the mean of its divisors is an integer number (1344812040).

Almost surely, 2^22142432331 is an apocalyptic number.

22142432331 is a deficient number, since it is larger than the sum of its proper divisors (10133056629).

22142432331 is a wasteful number, since it uses less digits than its factorization.

22142432331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28007 (or 28004 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 22142432331 its reverse (13323424122), we get a palindrome (35465856453).

The spelling of 22142432331 in words is "twenty-two billion, one hundred forty-two million, four hundred thirty-two thousand, three hundred thirty-one".