1212131012 has 24 divisors (see below), whose sum is σ = 2162834520. Its totient is φ = 594293760.

The previous prime is 1212131003. The next prime is 1212131017. The reversal of 1212131012 is 2101312121.

It can be written as a sum of positive squares in 4 ways, for example, as 626200576 + 585930436 = 25024^2 + 24206^2 .

It is not an unprimeable number, because it can be changed into a prime (1212131017) 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, 27962 + ... + 56622.

It is an arithmetic number, because the mean of its divisors is an integer number (90118105).

Almost surely, 2^1212131012 is an apocalyptic number.

It is an amenable number.

1212131012 is a deficient number, since it is larger than the sum of its proper divisors (950703508).

1212131012 is a wasteful number, since it uses less digits than its factorization.

1212131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28871 (or 28869 counting only the distinct ones).

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

The square root of 1212131012 is about 34815.6719308992. The cubic root of 1212131012 is about 1066.2274376934.

Adding to 1212131012 its reverse (2101312121), we get a palindrome (3313443133).

The spelling of 1212131012 in words is "one billion, two hundred twelve million, one hundred thirty-one thousand, twelve".