201220212201 has 16 divisors (see below), whose sum is σ = 270433080000. Its totient is φ = 133078389248.

The previous prime is 201220212191. The next prime is 201220212233. The reversal of 201220212201 is 102212022102.

It is not a de Polignac number, because 201220212201 - 2²⁶ = 201153103337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201220212701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 452785 + ... + 779393.

It is an arithmetic number, because the mean of its divisors is an integer number (16902067500).

Almost surely, 2^201220212201 is an apocalyptic number.

It is an amenable number.

201220212201 is a deficient number, since it is larger than the sum of its proper divisors (69212867799).

201220212201 is a wasteful number, since it uses less digits than its factorization.

201220212201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328248.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201220212201 its reverse (102212022102), we get a palindrome (303432234303).

The spelling of 201220212201 in words is "two hundred one billion, two hundred twenty million, two hundred twelve thousand, two hundred one".