125201522205 has 40 divisors (see below), whose sum is σ = 227276332800. Its totient is φ = 65928885984.

The previous prime is 125201522203. The next prime is 125201522209. The reversal of 125201522205 is 502225102521.

It is a happy number.

It is not a de Polignac number, because 125201522205 - 2¹ = 125201522203 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125201522203) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1924585 + ... + 1988574.

It is an arithmetic number, because the mean of its divisors is an integer number (5681908320).

Almost surely, 2^125201522205 is an apocalyptic number.

125201522205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125201522205 is a deficient number, since it is larger than the sum of its proper divisors (102074810595).

125201522205 is an equidigital number, since it uses as much as digits as its factorization.

125201522205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913255 (or 3913246 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 125201522205 its reverse (502225102521), we get a palindrome (627426624726).

The spelling of 125201522205 in words is "one hundred twenty-five billion, two hundred one million, five hundred twenty-two thousand, two hundred five".