201220111102211 has 8 divisors (see below), whose sum is σ = 201433452777984. Its totient is φ = 201006882460800.

The previous prime is 201220111102193. The next prime is 201220111102223. The reversal of 201220111102211 is 112201111022102.

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

It is a cyclic number.

It is not a de Polignac number, because 201220111102211 - 2⁶ = 201220111102147 is a prime.

It is a super-2 number, since 2×201220111102211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201220111102211.

It is not an unprimeable number, because it can be changed into a prime (201220111102511) 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, 24696131 + ... + 31817276.

It is an arithmetic number, because the mean of its divisors is an integer number (25179181597248).

Almost surely, 2^{201220111102211} is an apocalyptic number.

201220111102211 is a deficient number, since it is larger than the sum of its proper divisors (213341675773).

201220111102211 is a wasteful number, since it uses less digits than its factorization.

201220111102211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56517181.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201220111102211 its reverse (112201111022102), we get a palindrome (313421222124313).

The spelling of 201220111102211 in words is "two hundred one trillion, two hundred twenty billion, one hundred eleven million, one hundred two thousand, two hundred eleven".