12722611 has 8 divisors (see below), whose sum is σ = 14482944. Its totient is φ = 11062920.

The previous prime is 12722603. The next prime is 12722623. The reversal of 12722611 is 11622721.

It is a happy number.

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

It is not a de Polignac number, because 12722611 - 2³ = 12722603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12722641) 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, 24891 + ... + 25396.

It is an arithmetic number, because the mean of its divisors is an integer number (1810368).

Almost surely, 2^12722611 is an apocalyptic number.

12722611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12722611 is a deficient number, since it is larger than the sum of its proper divisors (1760333).

12722611 is a wasteful number, since it uses less digits than its factorization.

12722611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50321.

The product of its digits is 336, while the sum is 22.

The square root of 12722611 is about 3566.8769252667. The cubic root of 12722611 is about 233.4490349085.

It can be divided in two parts, 1272 and 2611, that added together give a palindrome (3883).

The spelling of 12722611 in words is "twelve million, seven hundred twenty-two thousand, six hundred eleven".