11271745522 has 4 divisors (see below), whose sum is σ = 16907618286. Its totient is φ = 5635872760.

The previous prime is 11271745439. The next prime is 11271745523. The reversal of 11271745522 is 22554717211.

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

It can be written as a sum of positive squares in only one way, i.e., 11236212001 + 35533521 = 106001^2 + 5961^2 .

It is a super-2 number, since 2×11271745522² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11271745523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2817936379 + ... + 2817936382.

Almost surely, 2^11271745522 is an apocalyptic number.

11271745522 is a deficient number, since it is larger than the sum of its proper divisors (5635872764).

11271745522 is an equidigital number, since it uses as much as digits as its factorization.

11271745522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635872763.

The product of its digits is 39200, while the sum is 37.

The spelling of 11271745522 in words is "eleven billion, two hundred seventy-one million, seven hundred forty-five thousand, five hundred twenty-two".