1142214011209 has 4 divisors (see below), whose sum is σ = 1142220484116. Its totient is φ = 1142207538304.

The previous prime is 1142214011173. The next prime is 1142214011231. The reversal of 1142214011209 is 9021104122411.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 624332281609 + 517881729600 = 790147^2 + 719640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142214011209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142214011509) by changing a digit.

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, 2964124 + ... + 3327229.

It is an arithmetic number, because the mean of its divisors is an integer number (285555121029).

Almost surely, 2^{1142214011209} is an apocalyptic number.

It is an amenable number.

1142214011209 is a deficient number, since it is larger than the sum of its proper divisors (6472907).

1142214011209 is an equidigital number, since it uses as much as digits as its factorization.

1142214011209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472906.

The product of its (nonzero) digits is 1152, while the sum is 28.

The spelling of 1142214011209 in words is "one trillion, one hundred forty-two billion, two hundred fourteen million, eleven thousand, two hundred nine".