210221002211212 has 12 divisors (see below), whose sum is σ = 369062110912936. Its totient is φ = 104774684807520.

The previous prime is 210221002211203. The next prime is 210221002211219. The reversal of 210221002211212 is 212112200122012.

It is a super-3 number, since 3×210221002211212³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210221002211212.

It is not an unprimeable number, because it can be changed into a prime (210221002211219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83954073114 + ... + 83954075617.

Almost surely, 2^{210221002211212} is an apocalyptic number.

It is an amenable number.

210221002211212 is a deficient number, since it is larger than the sum of its proper divisors (158841108701724).

210221002211212 is a wasteful number, since it uses less digits than its factorization.

210221002211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167908149048 (or 167908149046 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 210221002211212 its reverse (212112200122012), we get a palindrome (422333202333224).

The spelling of 210221002211212 in words is "two hundred ten trillion, two hundred twenty-one billion, two million, two hundred eleven thousand, two hundred twelve".