212212026125 has 16 divisors (see below), whose sum is σ = 288917029440. Its totient is φ = 154336018000.

The previous prime is 212212026107. The next prime is 212212026127. The reversal of 212212026125 is 521620212212.

It is not a de Polignac number, because 212212026125 - 2²⁰ = 212210977549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212212026094 and 212212026103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212026127) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 77166635 + ... + 77169384.

It is an arithmetic number, because the mean of its divisors is an integer number (18057314340).

Almost surely, 2^212212026125 is an apocalyptic number.

212212026125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212212026125 is a deficient number, since it is larger than the sum of its proper divisors (76705003315).

212212026125 is a wasteful number, since it uses less digits than its factorization.

212212026125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154336045 (or 154336035 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 212212026125 its reverse (521620212212), we get a palindrome (733832238337).

The spelling of 212212026125 in words is "two hundred twelve billion, two hundred twelve million, twenty-six thousand, one hundred twenty-five".