7212542522 has 16 divisors (see below), whose sum is σ = 11350892544. Its totient is φ = 3432726000.

The previous prime is 7212542503. The next prime is 7212542537. The reversal of 7212542522 is 2252452127.

It is an unprimeable number.

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, 949754 + ... + 957317.

It is an arithmetic number, because the mean of its divisors is an integer number (709430784).

Almost surely, 2^7212542522 is an apocalyptic number.

7212542522 is a deficient number, since it is larger than the sum of its proper divisors (4138350022).

7212542522 is a wasteful number, since it uses less digits than its factorization.

7212542522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907165.

The product of its digits is 22400, while the sum is 32.

The square root of 7212542522 is about 84926.6891030140. The cubic root of 7212542522 is about 1932.0993846643.

Adding to 7212542522 its reverse (2252452127), we get a palindrome (9464994649).

The spelling of 7212542522 in words is "seven billion, two hundred twelve million, five hundred forty-two thousand, five hundred twenty-two".