312201121332 has 48 divisors (see below), whose sum is σ = 764202902400. Its totient is φ = 99063323520.

The previous prime is 312201121321. The next prime is 312201121367. The reversal of 312201121332 is 233121102213.

It is a junction number, because it is equal to n+sod(n) for n = 312201121299 and 312201121308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6293107 + ... + 6342522.

It is an arithmetic number, because the mean of its divisors is an integer number (15920893800).

Almost surely, 2^312201121332 is an apocalyptic number.

It is an amenable number.

312201121332 is an abundant number, since it is smaller than the sum of its proper divisors (452001781068).

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

312201121332 is a wasteful number, since it uses less digits than its factorization.

312201121332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12635736 (or 12635734 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 312201121332 its reverse (233121102213), we get a palindrome (545322223545).

The spelling of 312201121332 in words is "three hundred twelve billion, two hundred one million, one hundred twenty-one thousand, three hundred thirty-two".