201112002122 has 4 divisors (see below), whose sum is σ = 301668003186. Its totient is φ = 100556001060.

The previous prime is 201112002043. The next prime is 201112002127. The reversal of 201112002122 is 221200211102.

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., 175528319521 + 25583682601 = 418961^2 + 159949^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201112002097 and 201112002106.

It is not an unprimeable number, because it can be changed into a prime (201112002127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50278000529 + ... + 50278000532.

Almost surely, 2^201112002122 is an apocalyptic number.

201112002122 is a deficient number, since it is larger than the sum of its proper divisors (100556001064).

201112002122 is a wasteful number, since it uses less digits than its factorization.

201112002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100556001063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201112002122 its reverse (221200211102), we get a palindrome (422312213224).

The spelling of 201112002122 in words is "two hundred one billion, one hundred twelve million, two thousand, one hundred twenty-two".