11522270072 has 64 divisors (see below), whose sum is σ = 22798540800. Its totient is φ = 5448643200.

The previous prime is 11522270063. The next prime is 11522270093. The reversal of 11522270072 is 27007222511.

It is a super-2 number, since 2×11522270072² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8855822 + ... + 8857122.

It is an arithmetic number, because the mean of its divisors is an integer number (356227200).

Almost surely, 2^11522270072 is an apocalyptic number.

It is an amenable number.

11522270072 is a deficient number, since it is larger than the sum of its proper divisors (11276270728).

11522270072 is a wasteful number, since it uses less digits than its factorization.

11522270072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836 (or 1832 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

Adding to 11522270072 its reverse (27007222511), we get a palindrome (38529492583).

The spelling of 11522270072 in words is "eleven billion, five hundred twenty-two million, two hundred seventy thousand, seventy-two".