201002221111 has 4 divisors (see below), whose sum is σ = 211581285400. Its totient is φ = 190423156824.

The previous prime is 201002221109. The next prime is 201002221171. The reversal of 201002221111 is 111122200102.

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 201002221111 - 2¹ = 201002221109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201002221091 and 201002221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201002221171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5289532116 + ... + 5289532153.

It is an arithmetic number, because the mean of its divisors is an integer number (52895321350).

Almost surely, 2^201002221111 is an apocalyptic number.

201002221111 is a deficient number, since it is larger than the sum of its proper divisors (10579064289).

201002221111 is a wasteful number, since it uses less digits than its factorization.

201002221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10579064288.

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

Adding to 201002221111 its reverse (111122200102), we get a palindrome (312124421213).

The spelling of 201002221111 in words is "two hundred one billion, two million, two hundred twenty-one thousand, one hundred eleven".