125212110 has 32 divisors (see below), whose sum is σ = 300805920. Its totient is φ = 33356928.

The previous prime is 125212093. The next prime is 125212117. The reversal of 125212110 is 11212521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 125212110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125212117) 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, 52504 + ... + 54836.

It is an arithmetic number, because the mean of its divisors is an integer number (9400185).

Almost surely, 2^125212110 is an apocalyptic number.

125212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125212110 is an abundant number, since it is smaller than the sum of its proper divisors (175593810).

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

125212110 is a wasteful number, since it uses less digits than its factorization.

125212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 125212110 is about 11189.8217143974. The cubic root of 125212110 is about 500.2826535172.

Adding to 125212110 its reverse (11212521), we get a palindrome (136424631).

The spelling of 125212110 in words is "one hundred twenty-five million, two hundred twelve thousand, one hundred ten".