1242111410121 has 8 divisors (see below), whose sum is σ = 1691385750144. Its totient is φ = 810455671760.

The previous prime is 1242111410107. The next prime is 1242111410147. The reversal of 1242111410121 is 1210141112421.

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 1242111410121 - 2⁷ = 1242111409993 is a prime.

It is a super-2 number, since 2×1242111410121² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1242111410171) 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, 4404650250 + ... + 4404650531.

It is an arithmetic number, because the mean of its divisors is an integer number (211423218768).

Almost surely, 2^{1242111410121} is an apocalyptic number.

It is an amenable number.

1242111410121 is a deficient number, since it is larger than the sum of its proper divisors (449274340023).

1242111410121 is an equidigital number, since it uses as much as digits as its factorization.

1242111410121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809300831.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 1242111410121 its reverse (1210141112421), we get a palindrome (2452252522542).

The spelling of 1242111410121 in words is "one trillion, two hundred forty-two billion, one hundred eleven million, four hundred ten thousand, one hundred twenty-one".