1213133044220 has 12 divisors (see below), whose sum is σ = 2547579392904. Its totient is φ = 485253217680.

The previous prime is 1213133044187. The next prime is 1213133044223. The reversal of 1213133044220 is 224403313121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213133044220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213133044223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30328326086 + ... + 30328326125.

It is an arithmetic number, because the mean of its divisors is an integer number (212298282742).

Almost surely, 2^{1213133044220} is an apocalyptic number.

1213133044220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213133044220 is an abundant number, since it is smaller than the sum of its proper divisors (1334446348684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213133044220 is a wasteful number, since it uses less digits than its factorization.

1213133044220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60656652220 (or 60656652218 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1213133044220 its reverse (224403313121), we get a palindrome (1437536357341).

The spelling of 1213133044220 in words is "one trillion, two hundred thirteen billion, one hundred thirty-three million, forty-four thousand, two hundred twenty".