1228213833 has 64 divisors (see below), whose sum is σ = 2098151424. Its totient is φ = 620640000.

The previous prime is 1228213813. The next prime is 1228213867. The reversal of 1228213833 is 3383128221.

It is not a de Polignac number, because 1228213833 - 2⁵ = 1228213801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1228213794 and 1228213803.

It is not an unprimeable number, because it can be changed into a prime (1228213813) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1422760 + ... + 1423622.

It is an arithmetic number, because the mean of its divisors is an integer number (32783616).

Almost surely, 2^1228213833 is an apocalyptic number.

It is an amenable number.

1228213833 is a deficient number, since it is larger than the sum of its proper divisors (869937591).

1228213833 is a wasteful number, since it uses less digits than its factorization.

1228213833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its digits is 13824, while the sum is 33.

The square root of 1228213833 is about 35045.8818265428. The cubic root of 1228213833 is about 1070.9223807585.

The spelling of 1228213833 in words is "one billion, two hundred twenty-eight million, two hundred thirteen thousand, eight hundred thirty-three".