1221483633 has 16 divisors (see below), whose sum is σ = 1684155456. Its totient is φ = 787026240.

The previous prime is 1221483629. The next prime is 1221483689. The reversal of 1221483633 is 3363841221.

It is not a de Polignac number, because 1221483633 - 2² = 1221483629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1221483594 and 1221483603.

It is not an unprimeable number, because it can be changed into a prime (1221483623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46678 + ... + 67983.

It is an arithmetic number, because the mean of its divisors is an integer number (105259716).

Almost surely, 2^1221483633 is an apocalyptic number.

It is an amenable number.

1221483633 is a deficient number, since it is larger than the sum of its proper divisors (462671823).

1221483633 is a wasteful number, since it uses less digits than its factorization.

1221483633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114784.

The product of its digits is 20736, while the sum is 33.

The square root of 1221483633 is about 34949.7300847946. The cubic root of 1221483633 is about 1068.9626983939.

The spelling of 1221483633 in words is "one billion, two hundred twenty-one million, four hundred eighty-three thousand, six hundred thirty-three".