1211210132 has 12 divisors (see below), whose sum is σ = 2312310336. Its totient is φ = 550550040.

The previous prime is 1211210129. The next prime is 1211210137. The reversal of 1211210132 is 2310121121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211210137) 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, 13763708 + ... + 13763795.

It is an arithmetic number, because the mean of its divisors is an integer number (192692528).

Almost surely, 2^1211210132 is an apocalyptic number.

It is an amenable number.

1211210132 is a deficient number, since it is larger than the sum of its proper divisors (1101100204).

1211210132 is a wasteful number, since it uses less digits than its factorization.

1211210132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27527518 (or 27527516 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1211210132 is about 34802.4443394426. Note that the first 3 decimals coincide. The cubic root of 1211210132 is about 1065.9573579010.

Adding to 1211210132 its reverse (2310121121), we get a palindrome (3521331253).

The spelling of 1211210132 in words is "one billion, two hundred eleven million, two hundred ten thousand, one hundred thirty-two".