12022137438 has 8 divisors (see below), whose sum is σ = 24044274888. Its totient is φ = 4007379144.

The previous prime is 12022137437. The next prime is 12022137487. The reversal of 12022137438 is 83473122021.

It is a sphenic number, since it is the product of 3 distinct primes.

12022137438 is an admirable number.

It is a super-2 number, since 2×12022137438² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12022137399 and 12022137408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022137431) 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, 1001844781 + ... + 1001844792.

It is an arithmetic number, because the mean of its divisors is an integer number (3005534361).

Almost surely, 2^12022137438 is an apocalyptic number.

12022137438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12022137438 is a wasteful number, since it uses less digits than its factorization.

12022137438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003689578.

The product of its (nonzero) digits is 16128, while the sum is 33.

Adding to 12022137438 its reverse (83473122021), we get a palindrome (95495259459).

The spelling of 12022137438 in words is "twelve billion, twenty-two million, one hundred thirty-seven thousand, four hundred thirty-eight".