1213612512232 has 8 divisors (see below), whose sum is σ = 2275523460450. Its totient is φ = 606806256112.

The previous prime is 1213612512181. The next prime is 1213612512247. The reversal of 1213612512232 is 2322152163121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 815130899716 + 398481612516 = 902846^2 + 631254^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1213612512194 and 1213612512203.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 75850782007 + ... + 75850782022.

Almost surely, 2^{1213612512232} is an apocalyptic number.

It is an amenable number.

1213612512232 is a deficient number, since it is larger than the sum of its proper divisors (1061910948218).

1213612512232 is a wasteful number, since it uses less digits than its factorization.

1213612512232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151701564035 (or 151701564031 counting only the distinct ones).

The product of its digits is 8640, while the sum is 31.

Adding to 1213612512232 its reverse (2322152163121), we get a palindrome (3535764675353).

The spelling of 1213612512232 in words is "one trillion, two hundred thirteen billion, six hundred twelve million, five hundred twelve thousand, two hundred thirty-two".