1133021211 has 16 divisors (see below), whose sum is σ = 1727192064. Its totient is φ = 647184384.

The previous prime is 1133021209. The next prime is 1133021221. The reversal of 1133021211 is 1121203311.

It is a happy number.

It is not a de Polignac number, because 1133021211 - 2¹ = 1133021209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1133021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52251 + ... + 70683.

It is an arithmetic number, because the mean of its divisors is an integer number (107949504).

Almost surely, 2^1133021211 is an apocalyptic number.

1133021211 is a deficient number, since it is larger than the sum of its proper divisors (594170853).

1133021211 is a wasteful number, since it uses less digits than its factorization.

1133021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21370.

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

The square root of 1133021211 is about 33660.3804345703. The cubic root of 1133021211 is about 1042.5078809450.

Adding to 1133021211 its reverse (1121203311), we get a palindrome (2254224522).

The spelling of 1133021211 in words is "one billion, one hundred thirty-three million, twenty-one thousand, two hundred eleven".