210201201112221 has 80 divisors (see below), whose sum is σ = 362893807317888. Its totient is φ = 119836831795200.

The previous prime is 210201201112213. The next prime is 210201201112223. The reversal of 210201201112221 is 122211102102012.

210201201112221 is a `hidden beast` number, since 210 + 2 + 0 + 120 + 1 + 112 + 221 = 666.

It is not a de Polignac number, because 210201201112221 - 2³ = 210201201112213 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 210201201112194 and 210201201112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210201201112223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 24665736 + ... + 32074926.

Almost surely, 2^{210201201112221} is an apocalyptic number.

It is an amenable number.

210201201112221 is a deficient number, since it is larger than the sum of its proper divisors (152692606205667).

210201201112221 is a wasteful number, since it uses less digits than its factorization.

210201201112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411104 (or 7411095 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 210201201112221 its reverse (122211102102012), we get a palindrome (332412303214233).

The spelling of 210201201112221 in words is "two hundred ten trillion, two hundred one billion, two hundred one million, one hundred twelve thousand, two hundred twenty-one".