525122111201 has 4 divisors (see below), whose sum is σ = 556011647172. Its totient is φ = 494232575232.

The previous prime is 525122111161. The next prime is 525122111209. The reversal of 525122111201 is 102111221525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 352295667025 + 172826444176 = 593545^2 + 415724^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525122111201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (525122111209) 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, 15444767960 + ... + 15444767993.

It is an arithmetic number, because the mean of its divisors is an integer number (139002911793).

Almost surely, 2^525122111201 is an apocalyptic number.

It is an amenable number.

525122111201 is a deficient number, since it is larger than the sum of its proper divisors (30889535971).

525122111201 is a wasteful number, since it uses less digits than its factorization.

525122111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30889535970.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 525122111201 its reverse (102111221525), we get a palindrome (627233332726).

The spelling of 525122111201 in words is "five hundred twenty-five billion, one hundred twenty-two million, one hundred eleven thousand, two hundred one".