2150121125 has 16 divisors (see below), whose sum is σ = 2684650176. Its totient is φ = 1719264400.

The previous prime is 2150121089. The next prime is 2150121133. The reversal of 2150121125 is 5211210512.

It is not a de Polignac number, because 2150121125 - 2¹² = 2150117029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2150121097 and 2150121106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473114 + ... + 477636.

It is an arithmetic number, because the mean of its divisors is an integer number (167790636).

Almost surely, 2^2150121125 is an apocalyptic number.

2150121125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2150121125 is a deficient number, since it is larger than the sum of its proper divisors (534529051).

2150121125 is an equidigital number, since it uses as much as digits as its factorization.

2150121125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8341 (or 8331 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2150121125 is about 46369.3985835486. The cubic root of 2150121125 is about 1290.6871176672.

Adding to 2150121125 its reverse (5211210512), we get a palindrome (7361331637).

The spelling of 2150121125 in words is "two billion, one hundred fifty million, one hundred twenty-one thousand, one hundred twenty-five".