210221102100004 has 12 divisors (see below), whose sum is σ = 368087850003328. Its totient is φ = 105053144956200.

The previous prime is 210221102099971. The next prime is 210221102100017. The reversal of 210221102100004 is 400001201122012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14351515212 + ... + 14351529859.

Almost surely, 2^{210221102100004} is an apocalyptic number.

It is an amenable number.

210221102100004 is a deficient number, since it is larger than the sum of its proper divisors (157866747903324).

210221102100004 is a wasteful number, since it uses less digits than its factorization.

210221102100004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28703046906 (or 28703046904 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210221102100004 its reverse (400001201122012), we get a palindrome (610222303222016).

The spelling of 210221102100004 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred two million, one hundred thousand, four".