1211331332 has 12 divisors (see below), whose sum is σ = 2146663680. Its totient is φ = 597998856.

The previous prime is 1211331323. The next prime is 1211331337. The reversal of 1211331332 is 2331331121.

It is not an unprimeable number, because it can be changed into a prime (1211331337) 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, 1916348 + ... + 1916979.

It is an arithmetic number, because the mean of its divisors is an integer number (178888640).

Almost surely, 2^1211331332 is an apocalyptic number.

It is an amenable number.

1211331332 is a deficient number, since it is larger than the sum of its proper divisors (935332348).

1211331332 is a wasteful number, since it uses less digits than its factorization.

1211331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833410 (or 3833408 counting only the distinct ones).

The product of its digits is 324, while the sum is 20.

The square root of 1211331332 is about 34804.1855528900. The cubic root of 1211331332 is about 1065.9929117986.

Adding to 1211331332 its reverse (2331331121), we get a palindrome (3542662453).

The spelling of 1211331332 in words is "one billion, two hundred eleven million, three hundred thirty-one thousand, three hundred thirty-two".