1212400034 has 8 divisors (see below), whose sum is σ = 1821288348. Its totient is φ = 605303920.

The previous prime is 1212400009. The next prime is 1212400043. The reversal of 1212400034 is 4300042121.

It can be written as a sum of positive squares in 2 ways, for example, as 948824809 + 263575225 = 30803^2 + 16235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212399985 and 1212400021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446357 + ... + 449064.

Almost surely, 2^1212400034 is an apocalyptic number.

1212400034 is a deficient number, since it is larger than the sum of its proper divisors (608888314).

1212400034 is an equidigital number, since it uses as much as digits as its factorization.

1212400034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896100.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1212400034 is about 34819.5352352670. The cubic root of 1212400034 is about 1066.3063118461.

Adding to 1212400034 its reverse (4300042121), we get a palindrome (5512442155).

The spelling of 1212400034 in words is "one billion, two hundred twelve million, four hundred thousand, thirty-four".