2120211231312 has 40 divisors (see below), whose sum is σ = 5486543276256. Its totient is φ = 705533086336.

The previous prime is 2120211231289. The next prime is 2120211231319. The reversal of 2120211231312 is 2131321120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120211231319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37596243 + ... + 37652594.

Almost surely, 2^{2120211231312} is an apocalyptic number.

It is an amenable number.

2120211231312 is an abundant number, since it is smaller than the sum of its proper divisors (3366332044944).

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

2120211231312 is a wasteful number, since it uses less digits than its factorization.

2120211231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75249435 (or 75249429 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2120211231312 its reverse (2131321120212), we get a palindrome (4251532351524).

The spelling of 2120211231312 in words is "two trillion, one hundred twenty billion, two hundred eleven million, two hundred thirty-one thousand, three hundred twelve".