1111132221222 has 32 divisors (see below), whose sum is σ = 2234003802624. Its totient is φ = 368424316800.

The previous prime is 1111132221169. The next prime is 1111132221229. The reversal of 1111132221222 is 2221222311111.

It is a super-2 number, since 2×1111132221222² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111132221229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849447 + ... + 1715757.

It is an arithmetic number, because the mean of its divisors is an integer number (69812618832).

Almost surely, 2^{1111132221222} is an apocalyptic number.

1111132221222 is an abundant number, since it is smaller than the sum of its proper divisors (1122871581402).

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

1111132221222 is a wasteful number, since it uses less digits than its factorization.

1111132221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867444.

The product of its digits is 192, while the sum is 21.

Adding to 1111132221222 its reverse (2221222311111), we get a palindrome (3332354532333).

The spelling of 1111132221222 in words is "one trillion, one hundred eleven billion, one hundred thirty-two million, two hundred twenty-one thousand, two hundred twenty-two".