1242012102421 has 8 divisors (see below), whose sum is σ = 1244228509440. Its totient is φ = 1239795917568.

The previous prime is 1242012102403. The next prime is 1242012102433.

1242012102421 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 1242012102421 - 2²⁹ = 1241475231509 is a prime.

It is a super-2 number, since 2×1242012102421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242012102392 and 1242012102401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242012132421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14524890 + ... + 14610148.

It is an arithmetic number, because the mean of its divisors is an integer number (155528563680).

Almost surely, 2^{1242012102421} is an apocalyptic number.

It is an amenable number.

1242012102421 is a deficient number, since it is larger than the sum of its proper divisors (2216407019).

1242012102421 is an equidigital number, since it uses as much as digits as its factorization.

1242012102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111083.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 1242012102421 in words is "one trillion, two hundred forty-two billion, twelve million, one hundred two thousand, four hundred twenty-one".