11212172107 has 16 divisors (see below), whose sum is σ = 11476442880. Its totient is φ = 10951343200.

The previous prime is 11212172093. The next prime is 11212172131. The reversal of 11212172107 is 70127121211.

It is a cyclic number.

It is not a de Polignac number, because 11212172107 - 2⁷ = 11212171979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212872107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3722232 + ... + 3725242.

It is an arithmetic number, because the mean of its divisors is an integer number (717277680).

Almost surely, 2^11212172107 is an apocalyptic number.

11212172107 is a deficient number, since it is larger than the sum of its proper divisors (264270773).

11212172107 is a wasteful number, since it uses less digits than its factorization.

11212172107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3554.

The product of its (nonzero) digits is 392, while the sum is 25.

Adding to 11212172107 its reverse (70127121211), we get a palindrome (81339293318).

The spelling of 11212172107 in words is "eleven billion, two hundred twelve million, one hundred seventy-two thousand, one hundred seven".