1226004521012 has 12 divisors (see below), whose sum is σ = 2149359814980. Its totient is φ = 611901716736.

The previous prime is 1226004520997. The next prime is 1226004521023. The reversal of 1226004521012 is 2101254006221.

It can be written as a sum of positive squares in 2 ways, for example, as 298874329636 + 927130191376 = 546694^2 + 962876^2 .

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 275133437 + ... + 275137892.

It is an arithmetic number, because the mean of its divisors is an integer number (179113317915).

Almost surely, 2^{1226004521012} is an apocalyptic number.

It is an amenable number.

1226004521012 is a deficient number, since it is larger than the sum of its proper divisors (923355293968).

1226004521012 is a wasteful number, since it uses less digits than its factorization.

1226004521012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550271890 (or 550271888 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 1226004521012 its reverse (2101254006221), we get a palindrome (3327258527233).

The spelling of 1226004521012 in words is "one trillion, two hundred twenty-six billion, four million, five hundred twenty-one thousand, twelve".