1212055346 has 4 divisors (see below), whose sum is σ = 1818083022. Its totient is φ = 606027672.

The previous prime is 1212055337. The next prime is 1212055363. The reversal of 1212055346 is 6435502121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 729594121 + 482461225 = 27011^2 + 21965^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303013835 + ... + 303013838.

Almost surely, 2^1212055346 is an apocalyptic number.

1212055346 is a deficient number, since it is larger than the sum of its proper divisors (606027676).

1212055346 is an equidigital number, since it uses as much as digits as its factorization.

1212055346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606027675.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 1212055346 is about 34814.5852481399. The cubic root of 1212055346 is about 1066.2052511906.

Adding to 1212055346 its reverse (6435502121), we get a palindrome (7647557467).

The spelling of 1212055346 in words is "one billion, two hundred twelve million, fifty-five thousand, three hundred forty-six".