11212105126 has 4 divisors (see below), whose sum is σ = 16818157692. Its totient is φ = 5606052562.

The previous prime is 11212105117. The next prime is 11212105127. The reversal of 11212105126 is 62150121211.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11212105126² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11212105097 and 11212105106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212105127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2803026280 + ... + 2803026283.

It is an arithmetic number, because the mean of its divisors is an integer number (4204539423).

Almost surely, 2^11212105126 is an apocalyptic number.

11212105126 is a deficient number, since it is larger than the sum of its proper divisors (5606052566).

11212105126 is an equidigital number, since it uses as much as digits as its factorization.

11212105126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606052565.

The product of its (nonzero) digits is 240, while the sum is 22.

Adding to 11212105126 its reverse (62150121211), we get a palindrome (73362226337).

The spelling of 11212105126 in words is "eleven billion, two hundred twelve million, one hundred five thousand, one hundred twenty-six".