2145002143212 has 18 divisors (see below), whose sum is σ = 5422088750988. Its totient is φ = 715000714392.

The previous prime is 2145002143201. The next prime is 2145002143241. The reversal of 2145002143212 is 2123412005412.

2145002143212 is a `hidden beast` number, since 2 + 1 + 4 + 500 + 2 + 143 + 2 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29791696398 + ... + 29791696469.

Almost surely, 2^{2145002143212} is an apocalyptic number.

It is an amenable number.

2145002143212 is an abundant number, since it is smaller than the sum of its proper divisors (3277086607776).

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

2145002143212 is a wasteful number, since it uses less digits than its factorization.

2145002143212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59583392877 (or 59583392872 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 2145002143212 its reverse (2123412005412), we get a palindrome (4268414148624).

The spelling of 2145002143212 in words is "two trillion, one hundred forty-five billion, two million, one hundred forty-three thousand, two hundred twelve".