12771522106015 has 32 divisors (see below), whose sum is σ = 16137403637760. Its totient is φ = 9691209964800.

The previous prime is 12771522106009. The next prime is 12771522106027. The reversal of 12771522106015 is 51060122517721.

It is not a de Polignac number, because 12771522106015 - 2⁷ = 12771522105887 is a prime.

It is a super-2 number, since 2×12771522106015² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2129001 + ... + 5484130.

It is an arithmetic number, because the mean of its divisors is an integer number (504293863680).

Almost surely, 2^{12771522106015} is an apocalyptic number.

12771522106015 is a deficient number, since it is larger than the sum of its proper divisors (3365881531745).

12771522106015 is a wasteful number, since it uses less digits than its factorization.

12771522106015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7613383.

The product of its (nonzero) digits is 58800, while the sum is 40.

The spelling of 12771522106015 in words is "twelve trillion, seven hundred seventy-one billion, five hundred twenty-two million, one hundred six thousand, fifteen".