1211412799 has 2 divisors, whose sum is σ = 1211412800. Its totient is φ = 1211412798.

The previous prime is 1211412793. The next prime is 1211412857. The reversal of 1211412799 is 9972141121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1211412799 - 2³ = 1211412791 is a prime.

It is a super-3 number, since 3×1211412799³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211412791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605706399 + 605706400.

It is an arithmetic number, because the mean of its divisors is an integer number (605706400).

Almost surely, 2^1211412799 is an apocalyptic number.

1211412799 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211412799 is an equidigital number, since it uses as much as digits as its factorization.

1211412799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The square root of 1211412799 is about 34805.3558953216. The cubic root of 1211412799 is about 1066.0168087279.

The spelling of 1211412799 in words is "one billion, two hundred eleven million, four hundred twelve thousand, seven hundred ninety-nine".