11121002525 has 12 divisors (see below), whose sum is σ = 14083449792. Its totient is φ = 8707507440.

The previous prime is 11121002513. The next prime is 11121002539. The reversal of 11121002525 is 52520012111.

It is not a de Polignac number, because 11121002525 - 2¹² = 11120998429 is a prime.

It is a super-2 number, since 2×11121002525² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121002497 and 11121002506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4731167 + ... + 4733516.

It is an arithmetic number, because the mean of its divisors is an integer number (1173620816).

Almost surely, 2^11121002525 is an apocalyptic number.

It is an amenable number.

11121002525 is a deficient number, since it is larger than the sum of its proper divisors (2962447267).

11121002525 is an equidigital number, since it uses as much as digits as its factorization.

11121002525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9464740 (or 9464735 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 11121002525 its reverse (52520012111), we get a palindrome (63641014636).

The spelling of 11121002525 in words is "eleven billion, one hundred twenty-one million, two thousand, five hundred twenty-five".