7122520101 has 32 divisors (see below), whose sum is σ = 10534625280. Its totient is φ = 4260168000.

The previous prime is 7122520099. The next prime is 7122520121. The reversal of 7122520101 is 1010252217.

It is not a de Polignac number, because 7122520101 - 2¹ = 7122520099 is a prime.

It is a super-3 number, since 3×7122520101³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122520121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105516 + ... + 159306.

It is an arithmetic number, because the mean of its divisors is an integer number (329207040).

Almost surely, 2^7122520101 is an apocalyptic number.

It is an amenable number.

7122520101 is a deficient number, since it is larger than the sum of its proper divisors (3412105179).

7122520101 is a wasteful number, since it uses less digits than its factorization.

7122520101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53937.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 7122520101 is about 84395.0241483466. The cubic root of 7122520101 is about 1924.0272907474.

Adding to 7122520101 its reverse (1010252217), we get a palindrome (8132772318).

The spelling of 7122520101 in words is "seven billion, one hundred twenty-two million, five hundred twenty thousand, one hundred one".