1212100332 has 12 divisors (see below), whose sum is σ = 2828234136. Its totient is φ = 404033440.

The previous prime is 1212100303. The next prime is 1212100333. The reversal of 1212100332 is 2330012121.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1212100333) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 50504169 + ... + 50504192.

It is an arithmetic number, because the mean of its divisors is an integer number (235686178).

Almost surely, 2^1212100332 is an apocalyptic number.

1212100332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212100332 is an abundant number, since it is smaller than the sum of its proper divisors (1616133804).

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

1212100332 is a wasteful number, since it uses less digits than its factorization.

1212100332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101008368 (or 101008366 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1212100332 is about 34815.2313219372. The cubic root of 1212100332 is about 1066.2184419293.

Adding to 1212100332 its reverse (2330012121), we get a palindrome (3542112453).

The spelling of 1212100332 in words is "one billion, two hundred twelve million, one hundred thousand, three hundred thirty-two".