12122421532042 has 16 divisors (see below), whose sum is σ = 18248382446112. Its totient is φ = 6039628550640.

The previous prime is 12122421532009. The next prime is 12122421532049. The reversal of 12122421532042 is 24023512422121.

It is a junction number, because it is equal to n+sod(n) for n = 12122421531995 and 12122421532013.

It is not an unprimeable number, because it can be changed into a prime (12122421532049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22011988 + ... + 22555984.

It is an arithmetic number, because the mean of its divisors is an integer number (1140523902882).

Almost surely, 2^{12122421532042} is an apocalyptic number.

12122421532042 is a deficient number, since it is larger than the sum of its proper divisors (6125960914070).

12122421532042 is a wasteful number, since it uses less digits than its factorization.

12122421532042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583653.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 12122421532042 its reverse (24023512422121), we get a palindrome (36145933954163).

The spelling of 12122421532042 in words is "twelve trillion, one hundred twenty-two billion, four hundred twenty-one million, five hundred thirty-two thousand, forty-two".