1312221201332 has 48 divisors (see below), whose sum is σ = 2426772902400. Its totient is φ = 619877422080.

The previous prime is 1312221201257. The next prime is 1312221201341. The reversal of 1312221201332 is 2331021222131.

It is a junction number, because it is equal to n+sod(n) for n = 1312221201298 and 1312221201307.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 11079644 + ... + 11197452.

It is an arithmetic number, because the mean of its divisors is an integer number (50557768800).

Almost surely, 2^{1312221201332} is an apocalyptic number.

It is an amenable number.

1312221201332 is a deficient number, since it is larger than the sum of its proper divisors (1114551701068).

1312221201332 is a wasteful number, since it uses less digits than its factorization.

1312221201332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119976 (or 119974 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1312221201332 its reverse (2331021222131), we get a palindrome (3643242423463).

The spelling of 1312221201332 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, two hundred one thousand, three hundred thirty-two".