1133222131 has 4 divisors (see below), whose sum is σ = 1138593064. Its totient is φ = 1127851200.

The previous prime is 1133222099. The next prime is 1133222147. The reversal of 1133222131 is 1312223311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1133222131 - 2⁵ = 1133222099 is a prime.

It is a super-2 number, since 2×1133222131² = 2568384796376362322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133222099 and 1133222108.

It is not an unprimeable number, because it can be changed into a prime (1133222231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2685150 + ... + 2685571.

It is an arithmetic number, because the mean of its divisors is an integer number (284648266).

Almost surely, 2^1133222131 is an apocalyptic number.

1133222131 is a deficient number, since it is larger than the sum of its proper divisors (5370933).

1133222131 is an equidigital number, since it uses as much as digits as its factorization.

1133222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5370932.

The product of its digits is 216, while the sum is 19.

The square root of 1133222131 is about 33663.3648199344. The cubic root of 1133222131 is about 1042.5695003572.

Adding to 1133222131 its reverse (1312223311), we get a palindrome (2445445442).

The spelling of 1133222131 in words is "one billion, one hundred thirty-three million, two hundred twenty-two thousand, one hundred thirty-one".