11201221132 has 6 divisors (see below), whose sum is σ = 19602136988. Its totient is φ = 5600610564.

The previous prime is 11201221081. The next prime is 11201221133. The reversal of 11201221132 is 23112210211.

It is a super-2 number, since 2×11201221132² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11201221133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400152638 + ... + 1400152645.

Almost surely, 2^11201221132 is an apocalyptic number.

It is an amenable number.

11201221132 is a deficient number, since it is larger than the sum of its proper divisors (8400915856).

11201221132 is a wasteful number, since it uses less digits than its factorization.

11201221132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800305287 (or 2800305285 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11201221132 its reverse (23112210211), we get a palindrome (34313431343).

The spelling of 11201221132 in words is "eleven billion, two hundred one million, two hundred twenty-one thousand, one hundred thirty-two".