201122002221111 has 12 divisors (see below), whose sum is σ = 290526554806488. Its totient is φ = 134073490486704.

The previous prime is 201122002221067. The next prime is 201122002221181. The reversal of 201122002221111 is 111122200221102.

201122002221111 is a `hidden beast` number, since 20 + 112 + 200 + 2 + 221 + 111 = 666.

It is not a de Polignac number, because 201122002221111 - 2⁶ = 201122002221047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122002221181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 653531565 + ... + 653839238.

It is an arithmetic number, because the mean of its divisors is an integer number (24210546233874).

Almost surely, 2^{201122002221111} is an apocalyptic number.

201122002221111 is a deficient number, since it is larger than the sum of its proper divisors (89404552585377).

201122002221111 is a wasteful number, since it uses less digits than its factorization.

201122002221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1307387902 (or 1307387899 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201122002221111 its reverse (111122200221102), we get a palindrome (312244202442213).

The spelling of 201122002221111 in words is "two hundred one trillion, one hundred twenty-two billion, two million, two hundred twenty-one thousand, one hundred eleven".