12081995338 has 32 divisors (see below), whose sum is σ = 21074901120. Its totient is φ = 5087370240.

The previous prime is 12081995311. The next prime is 12081995351. The reversal of 12081995338 is 83359918021.

It is a super-2 number, since 2×12081995338² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12081995291 and 12081995300.

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, 2138998 + ... + 2144638.

It is an arithmetic number, because the mean of its divisors is an integer number (658590660).

Almost surely, 2^12081995338 is an apocalyptic number.

12081995338 is a deficient number, since it is larger than the sum of its proper divisors (8992905782).

12081995338 is a wasteful number, since it uses less digits than its factorization.

12081995338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8302.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 12081995338 in words is "twelve billion, eighty-one million, nine hundred ninety-five thousand, three hundred thirty-eight".