210221001110212 has 6 divisors (see below), whose sum is σ = 367886751942878. Its totient is φ = 105110500555104.

The previous prime is 210221001110191. The next prime is 210221001110233. The reversal of 210221001110212 is 212011100122012.

It is an interprime number because it is at equal distance from previous prime (210221001110191) and next prime (210221001110233).

It can be written as a sum of positive squares in only one way, i.e., 116309667812416 + 93911333297796 = 10784696^2 + 9690786^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26277625138773 + ... + 26277625138780.

Almost surely, 2^{210221001110212} is an apocalyptic number.

It is an amenable number.

210221001110212 is a deficient number, since it is larger than the sum of its proper divisors (157665750832666).

210221001110212 is a wasteful number, since it uses less digits than its factorization.

210221001110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52555250277557 (or 52555250277555 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210221001110212 its reverse (212011100122012), we get a palindrome (422232101232224).

The spelling of 210221001110212 in words is "two hundred ten trillion, two hundred twenty-one billion, one million, one hundred ten thousand, two hundred twelve".