201220202010111 has 16 divisors (see below), whose sum is σ = 284166135982944. Its totient is φ = 126215565615104.

The previous prime is 201220202010073. The next prime is 201220202010173. The reversal of 201220202010111 is 111010202022102.

It is a cyclic number.

It is not a de Polignac number, because 201220202010111 - 2¹⁵ = 201220201977343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220202010211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628704240 + ... + 629024213.

It is an arithmetic number, because the mean of its divisors is an integer number (17760383498934).

Almost surely, 2^{201220202010111} is an apocalyptic number.

201220202010111 is a deficient number, since it is larger than the sum of its proper divisors (82945933972833).

201220202010111 is a wasteful number, since it uses less digits than its factorization.

201220202010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257731610.

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

Adding to 201220202010111 its reverse (111010202022102), we get a palindrome (312230404032213).

The spelling of 201220202010111 in words is "two hundred one trillion, two hundred twenty billion, two hundred two million, ten thousand, one hundred eleven".