210213102204221 has 16 divisors (see below), whose sum is σ = 216957603893184. Its totient is φ = 203560321999104.

The previous prime is 210213102204211. The next prime is 210213102204257. The reversal of 210213102204221 is 122402201312012.

210213102204221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 210213102204221 - 2²² = 210213098009917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210213102204211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41446556 + ... + 46241141.

It is an arithmetic number, because the mean of its divisors is an integer number (13559850243324).

Almost surely, 2^{210213102204221} is an apocalyptic number.

It is an amenable number.

210213102204221 is a deficient number, since it is larger than the sum of its proper divisors (6744501688963).

210213102204221 is a wasteful number, since it uses less digits than its factorization.

210213102204221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87688220.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 210213102204221 its reverse (122402201312012), we get a palindrome (332615303516233).

The spelling of 210213102204221 in words is "two hundred ten trillion, two hundred thirteen billion, one hundred two million, two hundred four thousand, two hundred twenty-one".