11528222051 has 8 divisors (see below), whose sum is σ = 12248383680. Its totient is φ = 10819401768.

The previous prime is 11528222047. The next prime is 11528222059. The reversal of 11528222051 is 15022282511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11528222051 - 2² = 11528222047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11528222059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2833241 + ... + 2837306.

It is an arithmetic number, because the mean of its divisors is an integer number (1531047960).

Almost surely, 2^11528222051 is an apocalyptic number.

11528222051 is a deficient number, since it is larger than the sum of its proper divisors (720161629).

11528222051 is a wasteful number, since it uses less digits than its factorization.

11528222051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670673.

The product of its (nonzero) digits is 3200, while the sum is 29.

The spelling of 11528222051 in words is "eleven billion, five hundred twenty-eight million, two hundred twenty-two thousand, fifty-one".