12416445132421 has 32 divisors (see below), whose sum is σ = 14181801169536. Its totient is φ = 10771966080000.

The previous prime is 12416445132337. The next prime is 12416445132439. The reversal of 12416445132421 is 12423154461421.

It is not a de Polignac number, because 12416445132421 - 2²⁹ = 12415908261509 is a prime.

It is a super-2 number, since 2×12416445132421² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12416442132421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2138665 + ... + 5422801.

It is an arithmetic number, because the mean of its divisors is an integer number (443181286548).

Almost surely, 2^{12416445132421} is an apocalyptic number.

12416445132421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12416445132421 is a deficient number, since it is larger than the sum of its proper divisors (1765356037115).

12416445132421 is a wasteful number, since it uses less digits than its factorization.

12416445132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284373.

The product of its digits is 184320, while the sum is 40.

Adding to 12416445132421 its reverse (12423154461421), we get a palindrome (24839599593842).

The spelling of 12416445132421 in words is "twelve trillion, four hundred sixteen billion, four hundred forty-five million, one hundred thirty-two thousand, four hundred twenty-one".