201220000211 has 4 divisors (see below), whose sum is σ = 201295564272. Its totient is φ = 201144436152.

The previous prime is 201220000199. The next prime is 201220000243. The reversal of 201220000211 is 112000022102.

It is a happy number.

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 201220000211 - 2²² = 201215805907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201220000192 and 201220000201.

It is not an unprimeable number, because it can be changed into a prime (201220000511) 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, 37778036 + ... + 37783361.

It is an arithmetic number, because the mean of its divisors is an integer number (50323891068).

Almost surely, 2^201220000211 is an apocalyptic number.

201220000211 is a deficient number, since it is larger than the sum of its proper divisors (75564061).

201220000211 is an equidigital number, since it uses as much as digits as its factorization.

201220000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75564060.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201220000211 its reverse (112000022102), we get a palindrome (313220022313).

The spelling of 201220000211 in words is "two hundred one billion, two hundred twenty million, two hundred eleven", and thus it is an aban number.