1211101132 has 24 divisors (see below), whose sum is σ = 2245995360. Its totient is φ = 570407040.

The previous prime is 1211101093. The next prime is 1211101139. The reversal of 1211101132 is 2311011121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1211101139) 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, 122568 + ... + 132079.

It is an arithmetic number, because the mean of its divisors is an integer number (93583140).

Almost surely, 2^1211101132 is an apocalyptic number.

It is an amenable number.

1211101132 is a deficient number, since it is larger than the sum of its proper divisors (1034894228).

1211101132 is a wasteful number, since it uses less digits than its factorization.

1211101132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254721 (or 254719 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1211101132 is about 34800.8783222493. The cubic root of 1211101132 is about 1065.9253808354.

Adding to 1211101132 its reverse (2311011121), we get a palindrome (3522112253).

The spelling of 1211101132 in words is "one billion, two hundred eleven million, one hundred one thousand, one hundred thirty-two".