125536332116221 has 8 divisors (see below), whose sum is σ = 135900789663744. Its totient is φ = 115272991228080.

The previous prime is 125536332116219. The next prime is 125536332116231. The reversal of 125536332116221 is 122611233635521.

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 125536332116221 - 2¹ = 125536332116219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125536332116231) 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, 25279162261 + ... + 25279167226.

It is an arithmetic number, because the mean of its divisors is an integer number (16987598707968).

Almost surely, 2^{125536332116221} is an apocalyptic number.

It is an amenable number.

125536332116221 is a deficient number, since it is larger than the sum of its proper divisors (10364457547523).

125536332116221 is a wasteful number, since it uses less digits than its factorization.

125536332116221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50558329691.

The product of its digits is 388800, while the sum is 43.

The spelling of 125536332116221 in words is "one hundred twenty-five trillion, five hundred thirty-six billion, three hundred thirty-two million, one hundred sixteen thousand, two hundred twenty-one".