11220211332 has 72 divisors (see below), whose sum is σ = 30952696320. Its totient is φ = 3398733120.

The previous prime is 11220211297. The next prime is 11220211337. The reversal of 11220211332 is 23311202211.

11220211332 is a `hidden beast` number, since 1 + 122 + 0 + 211 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11220211337) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1576093 + ... + 1583195.

It is an arithmetic number, because the mean of its divisors is an integer number (429898560).

Almost surely, 2^11220211332 is an apocalyptic number.

11220211332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11220211332 is an abundant number, since it is smaller than the sum of its proper divisors (19732484988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11220211332 is a wasteful number, since it uses less digits than its factorization.

11220211332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113 (or 11108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11220211332 its reverse (23311202211), we get a palindrome (34531413543).

The spelling of 11220211332 in words is "eleven billion, two hundred twenty million, two hundred eleven thousand, three hundred thirty-two".