312112110201220 has 24 divisors (see below), whose sum is σ = 749069064483264. Its totient is φ = 107009866354656.

The previous prime is 312112110201187. The next prime is 312112110201251. The reversal of 312112110201220 is 22102011211213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114686107722 + ... + 1114686108001.

It is an arithmetic number, because the mean of its divisors is an integer number (31211211020136).

Almost surely, 2^{312112110201220} is an apocalyptic number.

It is an amenable number.

312112110201220 is an abundant number, since it is smaller than the sum of its proper divisors (436956954282044).

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

312112110201220 is a wasteful number, since it uses less digits than its factorization.

312112110201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229372215739 (or 2229372215737 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 312112110201220 its reverse (22102011211213), we get a palindrome (334214121412433).

The spelling of 312112110201220 in words is "three hundred twelve trillion, one hundred twelve billion, one hundred ten million, two hundred one thousand, two hundred twenty".