125024453433221 has 4 divisors (see below), whose sum is σ = 125126016759744. Its totient is φ = 124922890106700.

The previous prime is 125024453433181. The next prime is 125024453433289. The reversal of 125024453433221 is 122334354420521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125024453433221 - 2¹⁸ = 125024453171077 is a prime.

It is a super-2 number, since 2×125024453433221² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125024453430221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50781661415 + ... + 50781663876.

It is an arithmetic number, because the mean of its divisors is an integer number (31281504189936).

Almost surely, 2^{125024453433221} is an apocalyptic number.

It is an amenable number.

125024453433221 is a deficient number, since it is larger than the sum of its proper divisors (101563326523).

125024453433221 is a wasteful number, since it uses less digits than its factorization.

125024453433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101563326522.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 125024453433221 in words is "one hundred twenty-five trillion, twenty-four billion, four hundred fifty-three million, four hundred thirty-three thousand, two hundred twenty-one".