1226205356 has 12 divisors (see below), whose sum is σ = 2258799480. Its totient is φ = 580834080.

The previous prime is 1226205283. The next prime is 1226205361. The reversal of 1226205356 is 6535026221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8067065 + ... + 8067216.

It is an arithmetic number, because the mean of its divisors is an integer number (188233290).

Almost surely, 2^1226205356 is an apocalyptic number.

It is an amenable number.

1226205356 is a deficient number, since it is larger than the sum of its proper divisors (1032594124).

1226205356 is a wasteful number, since it uses less digits than its factorization.

1226205356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16134304 (or 16134302 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 1226205356 is about 35017.2151377005. The cubic root of 1226205356 is about 1070.3383086057.

The spelling of 1226205356 in words is "one billion, two hundred twenty-six million, two hundred five thousand, three hundred fifty-six".