1213021033330 has 16 divisors (see below), whose sum is σ = 2202760320984. Its totient is φ = 480914533120.

The previous prime is 1213021033309. The next prime is 1213021033337. The reversal of 1213021033330 is 333301203121.

It can be written as a sum of positive squares in 4 ways, for example, as 953890148929 + 259130884401 = 976673^2 + 509049^2 .

It is not an unprimeable number, because it can be changed into a prime (1213021033337) 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, 536733841 + ... + 536736100.

Almost surely, 2^{1213021033330} is an apocalyptic number.

1213021033330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213021033330 is a deficient number, since it is larger than the sum of its proper divisors (989739287654).

1213021033330 is a wasteful number, since it uses less digits than its factorization.

1213021033330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073470061.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1213021033330 its reverse (333301203121), we get a palindrome (1546322236451).

The spelling of 1213021033330 in words is "one trillion, two hundred thirteen billion, twenty-one million, thirty-three thousand, three hundred thirty".