201220202111 has 8 divisors (see below), whose sum is σ = 212086356480. Its totient is φ = 190615882912.

The previous prime is 201220202093. The next prime is 201220202119. The reversal of 201220202111 is 111202022102.

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 201220202111 - 2¹⁸ = 201219939967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220202119) 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, 65457215 + ... + 65460288.

It is an arithmetic number, because the mean of its divisors is an integer number (26510794560).

Almost surely, 2^201220202111 is an apocalyptic number.

201220202111 is a deficient number, since it is larger than the sum of its proper divisors (10866154369).

201220202111 is a wasteful number, since it uses less digits than its factorization.

201220202111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130917585.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201220202111 its reverse (111202022102), we get a palindrome (312422224213).

The spelling of 201220202111 in words is "two hundred one billion, two hundred twenty million, two hundred two thousand, one hundred eleven".