1230221047 has 8 divisors (see below), whose sum is σ = 1360962432. Its totient is φ = 1102630200.

The previous prime is 1230221023. The next prime is 1230221077. The reversal of 1230221047 is 7401220321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230221047 - 2¹¹ = 1230218999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230221017) 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 7 ways as a sum of consecutive naturals, for example, 786813 + ... + 788374.

It is an arithmetic number, because the mean of its divisors is an integer number (170120304).

Almost surely, 2^1230221047 is an apocalyptic number.

1230221047 is a deficient number, since it is larger than the sum of its proper divisors (130741385).

1230221047 is a wasteful number, since it uses less digits than its factorization.

1230221047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575269.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 1230221047 is about 35074.5070813547. The cubic root of 1230221047 is about 1071.5054498241.

Adding to 1230221047 its reverse (7401220321), we get a palindrome (8631441368).

The spelling of 1230221047 in words is "one billion, two hundred thirty million, two hundred twenty-one thousand, forty-seven".