1133123333221 has 16 divisors (see below), whose sum is σ = 1248241832640. Its totient is φ = 1020039793920.

The previous prime is 1133123333219. The next prime is 1133123333239. The reversal of 1133123333221 is 1223333213311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1133123333221 - 2¹ = 1133123333219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1133123333221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133123333821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 902386 + ... + 1755148.

It is an arithmetic number, because the mean of its divisors is an integer number (78015114540).

Almost surely, 2^{1133123333221} is an apocalyptic number.

1133123333221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1133123333221 is a deficient number, since it is larger than the sum of its proper divisors (115118499419).

1133123333221 is a wasteful number, since it uses less digits than its factorization.

1133123333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853956.

The product of its digits is 5832, while the sum is 28.

Adding to 1133123333221 its reverse (1223333213311), we get a palindrome (2356456546532).

The spelling of 1133123333221 in words is "one trillion, one hundred thirty-three billion, one hundred twenty-three million, three hundred thirty-three thousand, two hundred twenty-one".