11211125 has 8 divisors (see below), whose sum is σ = 13991640. Its totient is φ = 8968800.

The previous prime is 11211103. The next prime is 11211131. The reversal of 11211125 is 52111211.

11211125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 195364 + 11015761 = 442^2 + 3319^2 .

It is not a de Polignac number, because 11211125 - 2⁶ = 11211061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44720 + ... + 44969.

It is an arithmetic number, because the mean of its divisors is an integer number (1748955).

Almost surely, 2^11211125 is an apocalyptic number.

It is an amenable number.

11211125 is a deficient number, since it is larger than the sum of its proper divisors (2780515).

11211125 is an frugal number, since it uses more digits than its factorization.

11211125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89704 (or 89694 counting only the distinct ones).

The product of its digits is 20, while the sum is 14.

The square root of 11211125 is about 3348.3018083799. The cubic root of 11211125 is about 223.8118437500.

Adding to 11211125 its reverse (52111211), we get a palindrome (63322336).

The spelling of 11211125 in words is "eleven million, two hundred eleven thousand, one hundred twenty-five".