4012430212121 has 12 divisors (see below), whose sum is σ = 4079546767296. Its totient is φ = 3946400460720.

The previous prime is 4012430212117. The next prime is 4012430212151. The reversal of 4012430212121 is 1212120342104.

It is not a de Polignac number, because 4012430212121 - 2² = 4012430212117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4012430212111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89367140 + ... + 89412026.

It is an arithmetic number, because the mean of its divisors is an integer number (339962230608).

Almost surely, 2^{4012430212121} is an apocalyptic number.

It is an amenable number.

4012430212121 is a deficient number, since it is larger than the sum of its proper divisors (67116555175).

4012430212121 is an equidigital number, since it uses as much as digits as its factorization.

4012430212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69032 (or 68971 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 4012430212121 its reverse (1212120342104), we get a palindrome (5224550554225).

The spelling of 4012430212121 in words is "four trillion, twelve billion, four hundred thirty million, two hundred twelve thousand, one hundred twenty-one".