12257011 has 4 divisors (see below), whose sum is σ = 13199872. Its totient is φ = 11314152.

The previous prime is 12257009. The next prime is 12257039. The reversal of 12257011 is 11075221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12257011 - 2¹ = 12257009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12257011.

It is not an unprimeable number, because it can be changed into a prime (12257041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 471411 + ... + 471436.

It is an arithmetic number, because the mean of its divisors is an integer number (3299968).

Almost surely, 2^12257011 is an apocalyptic number.

12257011 is a deficient number, since it is larger than the sum of its proper divisors (942861).

12257011 is an equidigital number, since it uses as much as digits as its factorization.

12257011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942860.

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

The square root of 12257011 is about 3501.0014281631. The cubic root of 12257011 is about 230.5657841325.

The spelling of 12257011 in words is "twelve million, two hundred fifty-seven thousand, eleven".