2125500122 has 8 divisors (see below), whose sum is σ = 3204770196. Its totient is φ = 1057243392.

The previous prime is 2125500121. The next prime is 2125500131. The reversal of 2125500122 is 2210055212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2077627561 + 47872561 = 45581^2 + 6919^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2125500094 and 2125500103.

It is not an unprimeable number, because it can be changed into a prime (2125500121) 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, 2752853 + ... + 2753624.

Almost surely, 2^2125500122 is an apocalyptic number.

2125500122 is a deficient number, since it is larger than the sum of its proper divisors (1079270074).

2125500122 is a wasteful number, since it uses less digits than its factorization.

2125500122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506672.

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

The square root of 2125500122 is about 46103.1465520522. The cubic root of 2125500122 is about 1285.7416465935.

Adding to 2125500122 its reverse (2210055212), we get a palindrome (4335555334).

The spelling of 2125500122 in words is "two billion, one hundred twenty-five million, five hundred thousand, one hundred twenty-two".