21000130211210 has 32 divisors (see below), whose sum is σ = 40269322279872. Its totient is φ = 7857428716800.

The previous prime is 21000130211209. The next prime is 21000130211287. The reversal of 21000130211210 is 1211203100012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378899216 + ... + 378954635.

It is an arithmetic number, because the mean of its divisors is an integer number (1258416321246).

Almost surely, 2^{21000130211210} is an apocalyptic number.

21000130211210 is a deficient number, since it is larger than the sum of its proper divisors (19269192068662).

21000130211210 is a wasteful number, since it uses less digits than its factorization.

21000130211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757854038.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21000130211210 its reverse (1211203100012), we get a palindrome (22211333311222).

The spelling of 21000130211210 in words is "twenty-one trillion, one hundred thirty million, two hundred eleven thousand, two hundred ten".