12124771412 has 48 divisors (see below), whose sum is σ = 23432108112. Its totient is φ = 5453905920.

The previous prime is 12124771409. The next prime is 12124771423. The reversal of 12124771412 is 21417742121.

It can be written as a sum of positive squares in 8 ways, for example, as 868834576 + 11255936836 = 29476^2 + 106094^2 .

It is a super-4 number, since 4×12124771412⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2592308 + ... + 2596980.

It is an arithmetic number, because the mean of its divisors is an integer number (488168919).

Almost surely, 2^12124771412 is an apocalyptic number.

It is an amenable number.

12124771412 is a deficient number, since it is larger than the sum of its proper divisors (11307336700).

12124771412 is a wasteful number, since it uses less digits than its factorization.

12124771412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5948 (or 5946 counting only the distinct ones).

The product of its digits is 6272, while the sum is 32.

The spelling of 12124771412 in words is "twelve billion, one hundred twenty-four million, seven hundred seventy-one thousand, four hundred twelve".