1221333022 has 16 divisors (see below), whose sum is σ = 2254768992. Its totient is φ = 483164640.

The previous prime is 1221333019. The next prime is 1221333059. The reversal of 1221333022 is 2203331221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3355129 + ... + 3355492.

It is an arithmetic number, because the mean of its divisors is an integer number (140923062).

Almost surely, 2^1221333022 is an apocalyptic number.

1221333022 is a deficient number, since it is larger than the sum of its proper divisors (1033435970).

1221333022 is a wasteful number, since it uses less digits than its factorization.

1221333022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6710643.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1221333022 is about 34947.5753379258. The cubic root of 1221333022 is about 1068.9187616178.

Adding to 1221333022 its reverse (2203331221), we get a palindrome (3424664243).

The spelling of 1221333022 in words is "one billion, two hundred twenty-one million, three hundred thirty-three thousand, twenty-two".