125105022061 has 8 divisors (see below), whose sum is σ = 127161807800. Its totient is φ = 123048426240.

The previous prime is 125105022047. The next prime is 125105022067. The reversal of 125105022061 is 160220501521.

It can be written as a sum of positive squares in 4 ways, for example, as 24054148836 + 101050873225 = 155094^2 + 317885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125105022061 - 2¹¹ = 125105020013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125105022067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1999825 + ... + 2061433.

It is an arithmetic number, because the mean of its divisors is an integer number (15895225975).

Almost surely, 2^125105022061 is an apocalyptic number.

It is an amenable number.

125105022061 is a deficient number, since it is larger than the sum of its proper divisors (2056785739).

125105022061 is an equidigital number, since it uses as much as digits as its factorization.

125105022061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94959.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 125105022061 its reverse (160220501521), we get a palindrome (285325523582).

The spelling of 125105022061 in words is "one hundred twenty-five billion, one hundred five million, twenty-two thousand, sixty-one".