1222836047 has 4 divisors (see below), whose sum is σ = 1223675640. Its totient is φ = 1221996456.

The previous prime is 1222836031. The next prime is 1222836077. The reversal of 1222836047 is 7406382221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1222836047 - 2⁴ = 1222836031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222835998 and 1222836016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222836007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417608 + ... + 420525.

It is an arithmetic number, because the mean of its divisors is an integer number (305918910).

Almost surely, 2^1222836047 is an apocalyptic number.

1222836047 is a deficient number, since it is larger than the sum of its proper divisors (839593).

1222836047 is an equidigital number, since it uses as much as digits as its factorization.

1222836047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839592.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1222836047 is about 34969.0727214778. The cubic root of 1222836047 is about 1069.3570676839.

The spelling of 1222836047 in words is "one billion, two hundred twenty-two million, eight hundred thirty-six thousand, forty-seven".