7532222121 has 12 divisors (see below), whose sum is σ = 10881282672. Its totient is φ = 5020832376.

The previous prime is 7532222107. The next prime is 7532222161. The reversal of 7532222121 is 1212222357.

7532222121 is a `hidden beast` number, since 7 + 532 + 2 + 2 + 2 + 121 = 666.

It is not a de Polignac number, because 7532222121 - 2¹⁰ = 7532221097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7532222161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25590 + ... + 125376.

It is an arithmetic number, because the mean of its divisors is an integer number (906773556).

Almost surely, 2^7532222121 is an apocalyptic number.

It is an amenable number.

7532222121 is a deficient number, since it is larger than the sum of its proper divisors (3349060551).

7532222121 is a wasteful number, since it uses less digits than its factorization.

7532222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108180 (or 108177 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 7532222121 is about 86788.3754946479. The cubic root of 7532222121 is about 1960.2330454015.

Adding to 7532222121 its reverse (1212222357), we get a palindrome (8744444478).

The spelling of 7532222121 in words is "seven billion, five hundred thirty-two million, two hundred twenty-two thousand, one hundred twenty-one".