1212124132 has 12 divisors (see below), whose sum is σ = 2124681916. Its totient is φ = 605072160.

The previous prime is 1212124073. The next prime is 1212124139. The reversal of 1212124132 is 2314212121.

It can be written as a sum of positive squares in 2 ways, for example, as 289544256 + 922579876 = 17016^2 + 30374^2 .

It is a super-2 number, since 2×1212124132² = 2938489822753506848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212124139) 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, 244719 + ... + 249622.

Almost surely, 2^1212124132 is an apocalyptic number.

It is an amenable number.

1212124132 is a deficient number, since it is larger than the sum of its proper divisors (912557784).

1212124132 is a wasteful number, since it uses less digits than its factorization.

1212124132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494958 (or 494956 counting only the distinct ones).

The product of its digits is 192, while the sum is 19.

The square root of 1212124132 is about 34815.5731246809. The cubic root of 1212124132 is about 1066.2254204035.

Adding to 1212124132 its reverse (2314212121), we get a palindrome (3526336253).

The spelling of 1212124132 in words is "one billion, two hundred twelve million, one hundred twenty-four thousand, one hundred thirty-two".