10111212225 has 36 divisors (see below), whose sum is σ = 18495649536. Its totient is φ = 5277903840.

The previous prime is 10111212211. The next prime is 10111212269. The reversal of 10111212225 is 52221211101.

10111212225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10111212225 - 2⁶ = 10111212161 is a prime.

It is a super-2 number, since 2×10111212225² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10111212198 and 10111212207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 467497 + ... + 488646.

Almost surely, 2^10111212225 is an apocalyptic number.

10111212225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10111212225 is a deficient number, since it is larger than the sum of its proper divisors (8384437311).

10111212225 is a wasteful number, since it uses less digits than its factorization.

10111212225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956206 (or 956198 counting only the distinct ones).

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

Adding to 10111212225 its reverse (52221211101), we get a palindrome (62332423326).

The spelling of 10111212225 in words is "ten billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty-five".