12022121242 has 8 divisors (see below), whose sum is σ = 18033829632. Its totient is φ = 6010844700.

The previous prime is 12022121239. The next prime is 12022121249. The reversal of 12022121242 is 24212122021.

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

It is not an unprimeable number, because it can be changed into a prime (12022121249) 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, 25884 + ... + 157207.

It is an arithmetic number, because the mean of its divisors is an integer number (2254228704).

Almost surely, 2^12022121242 is an apocalyptic number.

12022121242 is a deficient number, since it is larger than the sum of its proper divisors (6011708390).

12022121242 is a wasteful number, since it uses less digits than its factorization.

12022121242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215924.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 12022121242 its reverse (24212122021), we get a palindrome (36234243263).

The spelling of 12022121242 in words is "twelve billion, twenty-two million, one hundred twenty-one thousand, two hundred forty-two".