1212244004 has 12 divisors (see below), whose sum is σ = 2233081200. Its totient is φ = 574220808.

The previous prime is 1212243983. The next prime is 1212244009. The reversal of 1212244004 is 4004422121.

It is not an unprimeable number, because it can be changed into a prime (1212244009) 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, 7975214 + ... + 7975365.

It is an arithmetic number, because the mean of its divisors is an integer number (186090100).

Almost surely, 2^1212244004 is an apocalyptic number.

It is an amenable number.

1212244004 is a deficient number, since it is larger than the sum of its proper divisors (1020837196).

1212244004 is a wasteful number, since it uses less digits than its factorization.

1212244004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15950602 (or 15950600 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1212244004 is about 34817.2946105811. The cubic root of 1212244004 is about 1066.2605670680.

Adding to 1212244004 its reverse (4004422121), we get a palindrome (5216666125).

It can be divided in two parts, 121 and 2244004, that multiplied together give a square (271524484 = 16478²).

The spelling of 1212244004 in words is "one billion, two hundred twelve million, two hundred forty-four thousand, four".