210100211020221 has 8 divisors (see below), whose sum is σ = 280233555345120. Its totient is φ = 140016837021072.

The previous prime is 210100211020153. The next prime is 210100211020241. The reversal of 210100211020221 is 122020112001012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-210100211020221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210100211020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210100211020241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12492571626 + ... + 12492588443.

It is an arithmetic number, because the mean of its divisors is an integer number (35029194418140).

Almost surely, 2^{210100211020221} is an apocalyptic number.

It is an amenable number.

210100211020221 is a deficient number, since it is larger than the sum of its proper divisors (70133344324899).

210100211020221 is a wasteful number, since it uses less digits than its factorization.

210100211020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24985162875.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210100211020221 its reverse (122020112001012), we get a palindrome (332120323021233).

The spelling of 210100211020221 in words is "two hundred ten trillion, one hundred billion, two hundred eleven million, twenty thousand, two hundred twenty-one".