38122220012 has 6 divisors (see below), whose sum is σ = 66713885028. Its totient is φ = 19061110004.

The previous prime is 38122219997. The next prime is 38122220029. The reversal of 38122220012 is 21002222183.

It is a self number, because there is not a number n which added to its sum of digits gives 38122220012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4765277498 + ... + 4765277505.

It is an arithmetic number, because the mean of its divisors is an integer number (11118980838).

Almost surely, 2^38122220012 is an apocalyptic number.

It is an amenable number.

38122220012 is a deficient number, since it is larger than the sum of its proper divisors (28591665016).

38122220012 is a wasteful number, since it uses less digits than its factorization.

38122220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9530555007 (or 9530555005 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 38122220012 its reverse (21002222183), we get a palindrome (59124442195).

The spelling of 38122220012 in words is "thirty-eight billion, one hundred twenty-two million, two hundred twenty thousand, twelve".