210001222201 has 16 divisors (see below), whose sum is σ = 213602333440. Its totient is φ = 206425739520.

The previous prime is 210001222199. The next prime is 210001222243. The reversal of 210001222201 is 102222100012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 210001222201 - 2¹ = 210001222199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210001222261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17149441 + ... + 17161681.

It is an arithmetic number, because the mean of its divisors is an integer number (13350145840).

Almost surely, 2^210001222201 is an apocalyptic number.

It is an amenable number.

210001222201 is a deficient number, since it is larger than the sum of its proper divisors (3601111239).

210001222201 is a wasteful number, since it uses less digits than its factorization.

210001222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13264.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 210001222201 its reverse (102222100012), we get a palindrome (312223322213).

The spelling of 210001222201 in words is "two hundred ten billion, one million, two hundred twenty-two thousand, two hundred one".