1212245012 has 24 divisors (see below), whose sum is σ = 2316498912. Its totient is φ = 550493600.

The previous prime is 1212244997. The next prime is 1212245017. The reversal of 1212245012 is 2105422121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212245017) 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, 35378 + ... + 60630.

It is an arithmetic number, because the mean of its divisors is an integer number (96520788).

Almost surely, 2^1212245012 is an apocalyptic number.

It is an amenable number.

1212245012 is a deficient number, since it is larger than the sum of its proper divisors (1104253900).

1212245012 is a wasteful number, since it uses less digits than its factorization.

1212245012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26359 (or 26357 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1212245012 is about 34817.3090861428. The cubic root of 1212245012 is about 1066.2608626054.

Adding to 1212245012 its reverse (2105422121), we get a palindrome (3317667133).

The spelling of 1212245012 in words is "one billion, two hundred twelve million, two hundred forty-five thousand, twelve".