12271070 has 48 divisors (see below), whose sum is σ = 26101440. Its totient is φ = 4140864.

The previous prime is 12271069. The next prime is 12271073. The reversal of 12271070 is 7017221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12271073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38552 + ... + 38868.

It is an arithmetic number, because the mean of its divisors is an integer number (543780).

Almost surely, 2^12271070 is an apocalyptic number.

12271070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12271070 is an abundant number, since it is smaller than the sum of its proper divisors (13830370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12271070 is a wasteful number, since it uses less digits than its factorization.

12271070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 12271070 is about 3503.0087068119. The cubic root of 12271070 is about 230.6539047405.

Adding to 12271070 its reverse (7017221), we get a palindrome (19288291).

The spelling of 12271070 in words is "twelve million, two hundred seventy-one thousand, seventy".