201220120100211 has 4 divisors (see below), whose sum is σ = 268293493466952. Its totient is φ = 134146746733472.

The previous prime is 201220120100159. The next prime is 201220120100249. The reversal of 201220120100211 is 112001021022102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201220120100211 - 2²¹ = 201220118003059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201220120150211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33536686683366 + ... + 33536686683371.

It is an arithmetic number, because the mean of its divisors is an integer number (67073373366738).

Almost surely, 2^{201220120100211} is an apocalyptic number.

201220120100211 is a deficient number, since it is larger than the sum of its proper divisors (67073373366741).

201220120100211 is an equidigital number, since it uses as much as digits as its factorization.

201220120100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67073373366740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201220120100211 its reverse (112001021022102), we get a palindrome (313221141122313).

The spelling of 201220120100211 in words is "two hundred one trillion, two hundred twenty billion, one hundred twenty million, one hundred thousand, two hundred eleven".