12242277 has 6 divisors (see below), whose sum is σ = 17683302. Its totient is φ = 8161512.

The previous prime is 12242267. The next prime is 12242291. The reversal of 12242277 is 77224221.

It can be written as a sum of positive squares in only one way, i.e., 9235521 + 3006756 = 3039^2 + 1734^2 .

It is not a de Polignac number, because 12242277 - 2¹⁹ = 11717989 is a prime.

It is a super-2 number, since 2×12242277² = 299746692289458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12242277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 680118 + ... + 680135.

It is an arithmetic number, because the mean of its divisors is an integer number (2947217).

Almost surely, 2^12242277 is an apocalyptic number.

It is an amenable number.

12242277 is a deficient number, since it is larger than the sum of its proper divisors (5441025).

12242277 is a wasteful number, since it uses less digits than its factorization.

12242277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360259 (or 1360256 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 12242277 is about 3498.8965403395. The cubic root of 12242277 is about 230.4733603379.

Adding to 12242277 its reverse (77224221), we get a palindrome (89466498).

The spelling of 12242277 in words is "twelve million, two hundred forty-two thousand, two hundred seventy-seven".