7522250121 has 24 divisors (see below), whose sum is σ = 11067788160. Its totient is φ = 4922319456.

The previous prime is 7522250111. The next prime is 7522250147. The reversal of 7522250121 is 1210522257.

It is not a de Polignac number, because 7522250121 - 2¹¹ = 7522248073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7522250101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69136 + ... + 140798.

It is an arithmetic number, because the mean of its divisors is an integer number (461157840).

Almost surely, 2^7522250121 is an apocalyptic number.

It is an amenable number.

7522250121 is a deficient number, since it is larger than the sum of its proper divisors (3545538039).

7522250121 is a wasteful number, since it uses less digits than its factorization.

7522250121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71885 (or 71882 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 7522250121 is about 86730.9063771387. The cubic root of 7522250121 is about 1959.3676046179.

Adding to 7522250121 its reverse (1210522257), we get a palindrome (8732772378).

The spelling of 7522250121 in words is "seven billion, five hundred twenty-two million, two hundred fifty thousand, one hundred twenty-one".