201111102122 has 16 divisors (see below), whose sum is σ = 345283481472. Its totient is φ = 86060074320.

The previous prime is 201111102121. The next prime is 201111102133. The reversal of 201111102122 is 221201111102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 201111102097 and 201111102106.

It is not an unprimeable number, because it can be changed into a prime (201111102121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10856918 + ... + 10875425.

It is an arithmetic number, because the mean of its divisors is an integer number (21580217592).

Almost surely, 2^201111102122 is an apocalyptic number.

201111102122 is a deficient number, since it is larger than the sum of its proper divisors (144172379350).

201111102122 is a wasteful number, since it uses less digits than its factorization.

201111102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21733013.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 201111102122 its reverse (221201111102), we get a palindrome (422312213224).

The spelling of 201111102122 in words is "two hundred one billion, one hundred eleven million, one hundred two thousand, one hundred twenty-two".