210212101000221 has 32 divisors (see below), whose sum is σ = 292687928340480. Its totient is φ = 133947967500864.

The previous prime is 210212101000211. The next prime is 210212101000229. The reversal of 210212101000221 is 122000101212012.

It is not a de Polignac number, because 210212101000221 - 2¹¹ = 210212100998173 is a prime.

It is a super-2 number, since 2×210212101000221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210212101000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212101000229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3234149095 + ... + 3234214091.

It is an arithmetic number, because the mean of its divisors is an integer number (9146497760640).

Almost surely, 2^{210212101000221} is an apocalyptic number.

It is an amenable number.

210212101000221 is a deficient number, since it is larger than the sum of its proper divisors (82475827340259).

210212101000221 is a wasteful number, since it uses less digits than its factorization.

210212101000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99385.

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

Adding to 210212101000221 its reverse (122000101212012), we get a palindrome (332212202212233).

The spelling of 210212101000221 in words is "two hundred ten trillion, two hundred twelve billion, one hundred one million, two hundred twenty-one", and thus it is an aban number.