212344210125 has 64 divisors (see below), whose sum is σ = 399037317120. Its totient is φ = 111393576000.

The previous prime is 212344210109. The next prime is 212344210151. The reversal of 212344210125 is 521012443212.

212344210125 is a `hidden beast` number, since 2 + 1 + 234 + 421 + 0 + 1 + 2 + 5 = 666.

It is not a de Polignac number, because 212344210125 - 2⁴ = 212344210109 is a prime.

It is a super-2 number, since 2×212344210125² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 309837 + ... + 721586.

It is an arithmetic number, because the mean of its divisors is an integer number (6234958080).

Almost surely, 2^212344210125 is an apocalyptic number.

212344210125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

212344210125 is a deficient number, since it is larger than the sum of its proper divisors (186693106995).

212344210125 is a wasteful number, since it uses less digits than its factorization.

212344210125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031508 (or 1031492 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 212344210125 its reverse (521012443212), we get a palindrome (733356653337).

The spelling of 212344210125 in words is "two hundred twelve billion, three hundred forty-four million, two hundred ten thousand, one hundred twenty-five".