201220201000111 has 4 divisors (see below), whose sum is σ = 201224799416800. Its totient is φ = 201215602583424.

The previous prime is 201220201000103. The next prime is 201220201000139. The reversal of 201220201000111 is 111000102022102.

201220201000111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201220201000111 - 2³ = 201220201000103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201220201000091 and 201220201000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201220201000151) 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, 2299142706 + ... + 2299230223.

It is an arithmetic number, because the mean of its divisors is an integer number (50306199854200).

Almost surely, 2^{201220201000111} is an apocalyptic number.

201220201000111 is a deficient number, since it is larger than the sum of its proper divisors (4598416689).

201220201000111 is an equidigital number, since it uses as much as digits as its factorization.

201220201000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598416688.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201220201000111 its reverse (111000102022102), we get a palindrome (312220303022213).

The spelling of 201220201000111 in words is "two hundred one trillion, two hundred twenty billion, two hundred one million, one hundred eleven", and thus it is an aban number.