1131221133001 has 8 divisors (see below), whose sum is σ = 1143976975200. Its totient is φ = 1118466301920.

The previous prime is 1131221132989. The next prime is 1131221133019. The reversal of 1131221133001 is 1003311221311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131221133001 - 2¹³ = 1131221124809 is a prime.

It is a super-2 number, since 2×1131221133001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131221133001.

It is not an unprimeable number, because it can be changed into a prime (1131221133401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122506 + ... + 2601436.

It is an arithmetic number, because the mean of its divisors is an integer number (142997121900).

Almost surely, 2^{1131221133001} is an apocalyptic number.

It is an amenable number.

1131221133001 is a deficient number, since it is larger than the sum of its proper divisors (12755842199).

1131221133001 is an equidigital number, since it uses as much as digits as its factorization.

1131221133001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505559.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1131221133001 its reverse (1003311221311), we get a palindrome (2134532354312).

The spelling of 1131221133001 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-one million, one hundred thirty-three thousand, one".