2121432341212 has 12 divisors (see below), whose sum is σ = 3907901681320. Its totient is φ = 1004889003696.

The previous prime is 2121432341173. The next prime is 2121432341213.

2121432341212 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121432341213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13956791643 + ... + 13956791794.

Almost surely, 2^{2121432341212} is an apocalyptic number.

It is an amenable number.

2121432341212 is a deficient number, since it is larger than the sum of its proper divisors (1786469340108).

2121432341212 is a wasteful number, since it uses less digits than its factorization.

2121432341212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27913583460 (or 27913583458 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The spelling of 2121432341212 in words is "two trillion, one hundred twenty-one billion, four hundred thirty-two million, three hundred forty-one thousand, two hundred twelve".