12012422522542 has 64 divisors (see below), whose sum is σ = 20035620864000. Its totient is φ = 5367164444928.

The previous prime is 12012422522539. The next prime is 12012422522543. The reversal of 12012422522542 is 24522522421021.

It is a junction number, because it is equal to n+sod(n) for n = 12012422522498 and 12012422522507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012422522543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46284834 + ... + 46543642.

It is an arithmetic number, because the mean of its divisors is an integer number (313056576000).

Almost surely, 2^{12012422522542} is an apocalyptic number.

12012422522542 is a deficient number, since it is larger than the sum of its proper divisors (8023198341458).

12012422522542 is a wasteful number, since it uses less digits than its factorization.

12012422522542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259345.

The product of its (nonzero) digits is 51200, while the sum is 34.

Adding to 12012422522542 its reverse (24522522421021), we get a palindrome (36534944943563).

The spelling of 12012422522542 in words is "twelve trillion, twelve billion, four hundred twenty-two million, five hundred twenty-two thousand, five hundred forty-two".