12222355 has 4 divisors (see below), whose sum is σ = 14666832. Its totient is φ = 9777880.

The previous prime is 12222349. The next prime is 12222367. The reversal of 12222355 is 55322221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55322221 = 467 ⋅118463.

It is not a de Polignac number, because 12222355 - 2²³ = 3833747 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 15.

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, 1222231 + ... + 1222240.

It is an arithmetic number, because the mean of its divisors is an integer number (3666708).

Almost surely, 2^12222355 is an apocalyptic number.

12222355 is a deficient number, since it is larger than the sum of its proper divisors (2444477).

12222355 is an equidigital number, since it uses as much as digits as its factorization.

12222355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444476.

The product of its digits is 1200, while the sum is 22.

The square root of 12222355 is about 3496.0484836455. The cubic root of 12222355 is about 230.3482751343.

Adding to 12222355 its reverse (55322221), we get a palindrome (67544576).

The spelling of 12222355 in words is "twelve million, two hundred twenty-two thousand, three hundred fifty-five".