1226342205 has 96 divisors (see below), whose sum is σ = 2382981120. Its totient is φ = 578413440.

The previous prime is 1226342197. The next prime is 1226342207. The reversal of 1226342205 is 5022436221.

It is a happy number.

1226342205 is a `hidden beast` number, since 1 + 2 + 2 + 634 + 2 + 20 + 5 = 666.

It is not a de Polignac number, because 1226342205 - 2³ = 1226342197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226342207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3415816 + ... + 3416174.

It is an arithmetic number, because the mean of its divisors is an integer number (24822720).

Almost surely, 2^1226342205 is an apocalyptic number.

1226342205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226342205 is a deficient number, since it is larger than the sum of its proper divisors (1156638915).

1226342205 is a wasteful number, since it uses less digits than its factorization.

1226342205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1226342205 is about 35019.1691077901. The cubic root of 1226342205 is about 1070.3781250138.

Adding to 1226342205 its reverse (5022436221), we get a palindrome (6248778426).

The spelling of 1226342205 in words is "one billion, two hundred twenty-six million, three hundred forty-two thousand, two hundred five".