12412100121421 has 16 divisors (see below), whose sum is σ = 16665197367168. Its totient is φ = 8927784302400.

The previous prime is 12412100121397. The next prime is 12412100121461.

12412100121421 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 12412100121421 - 2¹⁷ = 12412099990349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12412100121392 and 12412100121401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412100121461) 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 15 ways as a sum of consecutive naturals, for example, 6199849210 + ... + 6199851211.

It is an arithmetic number, because the mean of its divisors is an integer number (1041574835448).

Almost surely, 2^{12412100121421} is an apocalyptic number.

12412100121421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12412100121421 is a deficient number, since it is larger than the sum of its proper divisors (4253097245747).

12412100121421 is a wasteful number, since it uses less digits than its factorization.

12412100121421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12399700452.

The product of its (nonzero) digits is 256, while the sum is 22.

It can be divided in two parts, 12412100 and 121421, that added together give a palindrome (12533521).

The spelling of 12412100121421 in words is "twelve trillion, four hundred twelve billion, one hundred million, one hundred twenty-one thousand, four hundred twenty-one".