1212010004 has 6 divisors (see below), whose sum is σ = 2121017514. Its totient is φ = 606005000.

The previous prime is 1212010003. The next prime is 1212010027. The reversal of 1212010004 is 4000102121.

It can be written as a sum of positive squares in only one way, i.e., 908901904 + 303108100 = 30148^2 + 17410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212010003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151501247 + ... + 151501254.

It is an arithmetic number, because the mean of its divisors is an integer number (353502919).

Almost surely, 2^1212010004 is an apocalyptic number.

It is an amenable number.

1212010004 is a deficient number, since it is larger than the sum of its proper divisors (909007510).

1212010004 is a wasteful number, since it uses less digits than its factorization.

1212010004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303002505 (or 303002503 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1212010004 is about 34813.9340494578. The cubic root of 1212010004 is about 1066.1919557358.

Adding to 1212010004 its reverse (4000102121), we get a palindrome (5212112125).

The spelling of 1212010004 in words is "one billion, two hundred twelve million, ten thousand, four".