201221120202211 has 8 divisors (see below), whose sum is σ = 213058053250560. Its totient is φ = 189384231216768.

The previous prime is 201221120202161. The next prime is 201221120202227. The reversal of 201221120202211 is 112202021122102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201221120202211 - 2¹³ = 201221120194019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201221120202511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1372536 + ... + 20107861.

It is an arithmetic number, because the mean of its divisors is an integer number (26632256656320).

Almost surely, 2^{201221120202211} is an apocalyptic number.

201221120202211 is a deficient number, since it is larger than the sum of its proper divisors (11836933048349).

201221120202211 is a wasteful number, since it uses less digits than its factorization.

201221120202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22031453.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201221120202211 its reverse (112202021122102), we get a palindrome (313423141324313).

The spelling of 201221120202211 in words is "two hundred one trillion, two hundred twenty-one billion, one hundred twenty million, two hundred two thousand, two hundred eleven".