1133211021 has 8 divisors (see below), whose sum is σ = 1512305184. Its totient is φ = 754795440.

The previous prime is 1133210959. The next prime is 1133211029. The reversal of 1133211021 is 1201123311.

It is a happy number.

1133211021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1133211021 - 2⁷ = 1133210893 is a prime.

It is a super-3 number, since 3×1133211021³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133211029) 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, 165735 + ... + 172436.

It is an arithmetic number, because the mean of its divisors is an integer number (189038148).

Almost surely, 2^1133211021 is an apocalyptic number.

It is an amenable number.

1133211021 is a deficient number, since it is larger than the sum of its proper divisors (379094163).

1133211021 is a wasteful number, since it uses less digits than its factorization.

1133211021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339291.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1133211021 is about 33663.1998033461. The cubic root of 1133211021 is about 1042.5660932626.

Adding to 1133211021 its reverse (1201123311), we get a palindrome (2334334332).

The spelling of 1133211021 in words is "one billion, one hundred thirty-three million, two hundred eleven thousand, twenty-one".