1213322002132 has 24 divisors (see below), whose sum is σ = 2133468448776. Its totient is φ = 603765241728.

The previous prime is 1213322002129. The next prime is 1213322002147. The reversal of 1213322002132 is 2312002233121.

It can be written as a sum of positive squares in 4 ways, for example, as 1052934567876 + 160387434256 = 1026126^2 + 400484^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 152898 + ... + 1565254.

It is an arithmetic number, because the mean of its divisors is an integer number (88894518699).

Almost surely, 2^{1213322002132} is an apocalyptic number.

It is an amenable number.

1213322002132 is a deficient number, since it is larger than the sum of its proper divisors (920146446644).

1213322002132 is a wasteful number, since it uses less digits than its factorization.

1213322002132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413387 (or 1413385 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1213322002132 its reverse (2312002233121), we get a palindrome (3525324235253).

The spelling of 1213322002132 in words is "one trillion, two hundred thirteen billion, three hundred twenty-two million, two thousand, one hundred thirty-two".