1212344101 has 16 divisors (see below), whose sum is σ = 1282210560. Its totient is φ = 1144503360.

The previous prime is 1212344083. The next prime is 1212344201. The reversal of 1212344101 is 1014432121.

It is a cyclic number.

It is not a de Polignac number, because 1212344101 - 2¹⁷ = 1212213029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212344201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507556 + ... + 509938.

It is an arithmetic number, because the mean of its divisors is an integer number (80138160).

Almost surely, 2^1212344101 is an apocalyptic number.

It is an amenable number.

1212344101 is a deficient number, since it is larger than the sum of its proper divisors (69866459).

1212344101 is a wasteful number, since it uses less digits than its factorization.

1212344101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1212344101 is about 34818.7320418191. The cubic root of 1212344101 is about 1066.2899138954.

Adding to 1212344101 its reverse (1014432121), we get a palindrome (2226776222).

The spelling of 1212344101 in words is "one billion, two hundred twelve million, three hundred forty-four thousand, one hundred one".