125210012215 has 16 divisors (see below), whose sum is σ = 151464582720. Its totient is φ = 99360751360.

The previous prime is 125210012209. The next prime is 125210012237. The reversal of 125210012215 is 512210012521.

It is a happy number.

It is not a de Polignac number, because 125210012215 - 2¹⁹ = 125209487927 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 834225 + ... + 972805.

It is an arithmetic number, because the mean of its divisors is an integer number (9466536420).

Almost surely, 2^125210012215 is an apocalyptic number.

125210012215 is a deficient number, since it is larger than the sum of its proper divisors (26254570505).

125210012215 is a wasteful number, since it uses less digits than its factorization.

125210012215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140042.

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 125210012215 its reverse (512210012521), we get a palindrome (637420024736).

The spelling of 125210012215 in words is "one hundred twenty-five billion, two hundred ten million, twelve thousand, two hundred fifteen".