1211210211132 has 18 divisors (see below), whose sum is σ = 3061670256008. Its totient is φ = 403736737032.

The previous prime is 1211210211097. The next prime is 1211210211149. The reversal of 1211210211132 is 2311120121121.

It is a happy number.

1211210211132 is a `hidden beast` number, since 1 + 211 + 210 + 211 + 1 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16822364008 + ... + 16822364079.

Almost surely, 2^{1211210211132} is an apocalyptic number.

1211210211132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1211210211132 is an abundant number, since it is smaller than the sum of its proper divisors (1850460044876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211210211132 is a wasteful number, since it uses less digits than its factorization.

1211210211132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33644728097 (or 33644728092 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1211210211132 its reverse (2311120121121), we get a palindrome (3522330332253).

The spelling of 1211210211132 in words is "one trillion, two hundred eleven billion, two hundred ten million, two hundred eleven thousand, one hundred thirty-two".