201111202010122 has 4 divisors (see below), whose sum is σ = 301666803015186. Its totient is φ = 100555601005060.

The previous prime is 201111202010063. The next prime is 201111202010123. The reversal of 201111202010122 is 221010202111102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 102239580826881 + 98871621183241 = 10111359^2 + 9943421^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201111202010096 and 201111202010105.

It is not an unprimeable number, because it can be changed into a prime (201111202010123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50277800502529 + ... + 50277800502532.

Almost surely, 2^{201111202010122} is an apocalyptic number.

201111202010122 is a deficient number, since it is larger than the sum of its proper divisors (100555601005064).

201111202010122 is a wasteful number, since it uses less digits than its factorization.

201111202010122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100555601005063.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201111202010122 its reverse (221010202111102), we get a palindrome (422121404121224).

The spelling of 201111202010122 in words is "two hundred one trillion, one hundred eleven billion, two hundred two million, ten thousand, one hundred twenty-two".