2100221310312 has 80 divisors (see below), whose sum is σ = 5883036855300. Its totient is φ = 700017534720.

The previous prime is 2100221310301. The next prime is 2100221310331. The reversal of 2100221310312 is 2130131220012.

2100221310312 is a `hidden beast` number, since 2 + 100 + 221 + 31 + 0 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1958247591876 + 141973718436 = 1399374^2 + 376794^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8371012 + ... + 8618252.

Almost surely, 2^{2100221310312} is an apocalyptic number.

It is an amenable number.

2100221310312 is an abundant number, since it is smaller than the sum of its proper divisors (3782815544988).

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

2100221310312 is a wasteful number, since it uses less digits than its factorization.

2100221310312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260368 (or 260355 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2100221310312 its reverse (2130131220012), we get a palindrome (4230352530324).

The spelling of 2100221310312 in words is "two trillion, one hundred billion, two hundred twenty-one million, three hundred ten thousand, three hundred twelve".