210212220012201 has 72 divisors (see below), whose sum is σ = 340241671453320. Its totient is φ = 124927143644160.

The previous prime is 210212220012143. The next prime is 210212220012247. The reversal of 210212220012201 is 102210022212012.

It is a happy number.

210212220012201 is a `hidden beast` number, since 2 + 10 + 212 + 220 + 0 + 1 + 220 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 75326759451801 + 134885460560400 = 8679099^2 + 11614020^2 .

It is not a de Polignac number, because 210212220012201 - 2¹⁹ = 210212219487913 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210212220012001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 101538315 + ... + 103587903.

It is an arithmetic number, because the mean of its divisors is an integer number (4725578770185).

Almost surely, 2^{210212220012201} is an apocalyptic number.

It is an amenable number.

210212220012201 is a deficient number, since it is larger than the sum of its proper divisors (130029451441119).

210212220012201 is a wasteful number, since it uses less digits than its factorization.

210212220012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2051447 (or 2051433 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210212220012201 its reverse (102210022212012), we get a palindrome (312422242224213).

The spelling of 210212220012201 in words is "two hundred ten trillion, two hundred twelve billion, two hundred twenty million, twelve thousand, two hundred one".