12271015 has 8 divisors (see below), whose sum is σ = 14823648. Its totient is φ = 9751200.

The previous prime is 12271003. The next prime is 12271019. The reversal of 12271015 is 51017221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12271015 - 2¹¹ = 12268967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12270983 and 12271001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7372 + ... + 8881.

It is an arithmetic number, because the mean of its divisors is an integer number (1852956).

Almost surely, 2^12271015 is an apocalyptic number.

12271015 is a deficient number, since it is larger than the sum of its proper divisors (2552633).

12271015 is a wasteful number, since it uses less digits than its factorization.

12271015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16409.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12271015 is about 3503.0008564087. Note that the first 3 decimals coincide. The cubic root of 12271015 is about 230.6535601364.

Adding to 12271015 its reverse (51017221), we get a palindrome (63288236).

The spelling of 12271015 in words is "twelve million, two hundred seventy-one thousand, fifteen".