12068477421 has 96 divisors (see below), whose sum is σ = 21954659328. Its totient is φ = 5725624320.

The previous prime is 12068477411. The next prime is 12068477441. The reversal of 12068477421 is 12477486021.

It is not a de Polignac number, because 12068477421 - 2⁵ = 12068477389 is a prime.

It is a super-2 number, since 2×12068477421² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12068477411) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3785190 + ... + 3788376.

It is an arithmetic number, because the mean of its divisors is an integer number (228694368).

Almost surely, 2^12068477421 is an apocalyptic number.

12068477421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12068477421 is a deficient number, since it is larger than the sum of its proper divisors (9886181907).

12068477421 is a wasteful number, since it uses less digits than its factorization.

12068477421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331 (or 3318 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 12068477421 in words is "twelve billion, sixty-eight million, four hundred seventy-seven thousand, four hundred twenty-one".