21002032130212 has 24 divisors (see below), whose sum is σ = 42692655481280. Its totient is φ = 8853315651360.

The previous prime is 21002032130173. The next prime is 21002032130243. The reversal of 21002032130212 is 21203123020012.

It is a self number, because there is not a number n which added to its sum of digits gives 21002032130212.

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, 6148134162 + ... + 6148137577.

Almost surely, 2^{21002032130212} is an apocalyptic number.

It is an amenable number.

21002032130212 is an abundant number, since it is smaller than the sum of its proper divisors (21690623351068).

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

21002032130212 is a wasteful number, since it uses less digits than its factorization.

21002032130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12296271811 (or 12296271809 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21002032130212 its reverse (21203123020012), we get a palindrome (42205155150224).

The spelling of 21002032130212 in words is "twenty-one trillion, two billion, thirty-two million, one hundred thirty thousand, two hundred twelve".