11227371428529 has 33 divisors (see below), whose sum is σ = 16842183496203. Its totient is φ = 7484371467912.

The previous prime is 11227371428467. The next prime is 11227371428561. The reversal of 11227371428529 is 92582417372211.

The square root of 11227371428529 is 3350727.

It is a perfect power (a square), and thus also a powerful number.

11227371428529 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 7 + 3 + 71 + 42 + 8 + 529 = 666.

11227371428529 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 only one way, i.e., 10904042724129 + 323328704400 = 3302127^2 + 568620^2 .

It is not a de Polignac number, because 11227371428529 - 2³¹ = 11225223944881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11227371428029) by changing a digit.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 814219767 + ... + 814233555.

Almost surely, 2^{11227371428529} is an apocalyptic number.

11227371428529 is the 3350727-th square number.

11227371428529 is the 1675364-th centered octagonal number.

It is an amenable number.

11227371428529 is a deficient number, since it is larger than the sum of its proper divisors (5614812067674).

11227371428529 is an frugal number, since it uses more digits than its factorization.

11227371428529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27608 (or 13792 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 11227371428529 in words is "eleven trillion, two hundred twenty-seven billion, three hundred seventy-one million, four hundred twenty-eight thousand, five hundred twenty-nine".