12421253102242 has 8 divisors (see below), whose sum is σ = 18646401776976. Its totient is φ = 6205785843252.

The previous prime is 12421253102191. The next prime is 12421253102267. The reversal of 12421253102242 is 24220135212421.

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

It is a super-3 number, since 3×12421253102242³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2420350728 + ... + 2420355859.

It is an arithmetic number, because the mean of its divisors is an integer number (2330800222122).

Almost surely, 2^{12421253102242} is an apocalyptic number.

12421253102242 is a deficient number, since it is larger than the sum of its proper divisors (6225148674734).

12421253102242 is a wasteful number, since it uses less digits than its factorization.

12421253102242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840707872.

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

Adding to 12421253102242 its reverse (24220135212421), we get a palindrome (36641388314663).

The spelling of 12421253102242 in words is "twelve trillion, four hundred twenty-one billion, two hundred fifty-three million, one hundred two thousand, two hundred forty-two".