12270128 has 20 divisors (see below), whose sum is σ = 25602528. Its totient is φ = 5663040.

The previous prime is 12270113. The next prime is 12270133. The reversal of 12270128 is 82107221.

12270128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12270128² = 301112082272768, which 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 3 ways as a sum of consecutive naturals, for example, 29288 + ... + 29703.

Almost surely, 2^12270128 is an apocalyptic number.

It is an amenable number.

12270128 is an abundant number, since it is smaller than the sum of its proper divisors (13332400).

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

12270128 is a wasteful number, since it uses less digits than its factorization.

12270128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59012 (or 59006 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 12270128 is about 3502.8742483852. The cubic root of 12270128 is about 230.6480024696.

Adding to 12270128 its reverse (82107221), we get a palindrome (94377349).

The spelling of 12270128 in words is "twelve million, two hundred seventy thousand, one hundred twenty-eight".