242121671242 has 8 divisors (see below), whose sum is σ = 396199098432. Its totient is φ = 110055305100.

The previous prime is 242121671189. The next prime is 242121671243. The reversal of 242121671242 is 242176121242.

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

It is a junction number, because it is equal to n+sod(n) for n = 242121671198 and 242121671207.

It is not an unprimeable number, because it can be changed into a prime (242121671243) 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, 5502765234 + ... + 5502765277.

It is an arithmetic number, because the mean of its divisors is an integer number (49524887304).

Almost surely, 2^242121671242 is an apocalyptic number.

242121671242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242121671242 is a deficient number, since it is larger than the sum of its proper divisors (154077427190).

242121671242 is a wasteful number, since it uses less digits than its factorization.

242121671242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11005530524.

The product of its digits is 21504, while the sum is 34.

Adding to 242121671242 its reverse (242176121242), we get a palindrome (484297792484).

The spelling of 242121671242 in words is "two hundred forty-two billion, one hundred twenty-one million, six hundred seventy-one thousand, two hundred forty-two".