210221102001212 has 48 divisors (see below), whose sum is σ = 371335675318272. Its totient is φ = 104126177675520.

The previous prime is 210221102001203. The next prime is 210221102001221. The reversal of 210221102001212 is 212100201122012.

It is an interprime number because it is at equal distance from previous prime (210221102001203) and next prime (210221102001221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8721769553 + ... + 8721793655.

It is an arithmetic number, because the mean of its divisors is an integer number (7736159902464).

Almost surely, 2^{210221102001212} is an apocalyptic number.

It is an amenable number.

210221102001212 is a deficient number, since it is larger than the sum of its proper divisors (161114573317060).

210221102001212 is a wasteful number, since it uses less digits than its factorization.

210221102001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33458 (or 33456 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210221102001212 its reverse (212100201122012), we get a palindrome (422321303123224).

The spelling of 210221102001212 in words is "two hundred ten trillion, two hundred twenty-one billion, one hundred two million, one thousand, two hundred twelve".