11001222122 has 16 divisors (see below), whose sum is σ = 18017985600. Its totient is φ = 4996115040.

The previous prime is 11001222107. The next prime is 11001222163. The reversal of 11001222122 is 22122210011.

It is a junction number, because it is equal to n+sod(n) for n = 11001222097 and 11001222106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196622 + ... + 246297.

It is an arithmetic number, because the mean of its divisors is an integer number (1126124100).

Almost surely, 2^11001222122 is an apocalyptic number.

11001222122 is a deficient number, since it is larger than the sum of its proper divisors (7016763478).

11001222122 is a wasteful number, since it uses less digits than its factorization.

11001222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444061.

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

Adding to 11001222122 its reverse (22122210011), we get a palindrome (33123432133).

The spelling of 11001222122 in words is "eleven billion, one million, two hundred twenty-two thousand, one hundred twenty-two".