11221122105 has 128 divisors (see below), whose sum is σ = 21555072000. Its totient is φ = 5526743040.

The previous prime is 11221122103. The next prime is 11221122191. The reversal of 11221122105 is 50122112211.

It is not a de Polignac number, because 11221122105 - 2¹ = 11221122103 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11221122103) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8506636 + ... + 8507954.

It is an arithmetic number, because the mean of its divisors is an integer number (168399000).

Almost surely, 2^11221122105 is an apocalyptic number.

11221122105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11221122105 is a deficient number, since it is larger than the sum of its proper divisors (10333949895).

11221122105 is a wasteful number, since it uses less digits than its factorization.

11221122105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1450 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 11221122105 its reverse (50122112211), we get a palindrome (61343234316).

The spelling of 11221122105 in words is "eleven billion, two hundred twenty-one million, one hundred twenty-two thousand, one hundred five".