125001212 has 48 divisors (see below), whose sum is σ = 255790080. Its totient is φ = 52348032.

The previous prime is 125001211. The next prime is 125001241. The reversal of 125001212 is 212100521.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125001211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256433 + ... + 256919.

It is an arithmetic number, because the mean of its divisors is an integer number (5328960).

Almost surely, 2^125001212 is an apocalyptic number.

It is an amenable number.

125001212 is an abundant number, since it is smaller than the sum of its proper divisors (130788868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125001212 is a wasteful number, since it uses less digits than its factorization.

125001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 688 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 125001212 is about 11180.3940896553. The cubic root of 125001212 is about 500.0016159948.

Adding to 125001212 its reverse (212100521), we get a palindrome (337101733).

The spelling of 125001212 in words is "one hundred twenty-five million, one thousand, two hundred twelve".