2125050221 has 8 divisors (see below), whose sum is σ = 2461898304. Its totient is φ = 1796519520.

The previous prime is 2125050203. The next prime is 2125050223. The reversal of 2125050221 is 1220505212.

It is a happy number.

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 2125050221 - 2¹⁸ = 2124788077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2125050193 and 2125050202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125050223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2078795 + ... + 2079816.

It is an arithmetic number, because the mean of its divisors is an integer number (307737288).

Almost surely, 2^2125050221 is an apocalyptic number.

It is an amenable number.

2125050221 is a deficient number, since it is larger than the sum of its proper divisors (336848083).

2125050221 is an equidigital number, since it uses as much as digits as its factorization.

2125050221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4158691.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2125050221 is about 46098.2670064722. The cubic root of 2125050221 is about 1285.6509232754.

Adding to 2125050221 its reverse (1220505212), we get a palindrome (3345555433).

The spelling of 2125050221 in words is "two billion, one hundred twenty-five million, fifty thousand, two hundred twenty-one".