1131100221332 has 36 divisors (see below), whose sum is σ = 2092176571380. Its totient is φ = 534430210944.

The previous prime is 1131100221331. The next prime is 1131100221337. The reversal of 1131100221332 is 2331220011311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 371141697796 + 759958523536 = 609214^2 + 871756^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131100221331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1950833 + ... + 2463320.

Almost surely, 2^{1131100221332} is an apocalyptic number.

It is an amenable number.

1131100221332 is a deficient number, since it is larger than the sum of its proper divisors (961076350048).

1131100221332 is a wasteful number, since it uses less digits than its factorization.

1131100221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414280 (or 4414231 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1131100221332 its reverse (2331220011311), we get a palindrome (3462320232643).

The spelling of 1131100221332 in words is "one trillion, one hundred thirty-one billion, one hundred million, two hundred twenty-one thousand, three hundred thirty-two".