1211442214 has 4 divisors (see below), whose sum is σ = 1817163324. Its totient is φ = 605721106.

The previous prime is 1211442203. The next prime is 1211442217. The reversal of 1211442214 is 4122441121.

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

It is a super-3 number, since 3×1211442214³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211442217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302860552 + ... + 302860555.

It is an arithmetic number, because the mean of its divisors is an integer number (454290831).

Almost surely, 2^1211442214 is an apocalyptic number.

1211442214 is a deficient number, since it is larger than the sum of its proper divisors (605721110).

1211442214 is an equidigital number, since it uses as much as digits as its factorization.

1211442214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605721109.

The product of its digits is 512, while the sum is 22.

The square root of 1211442214 is about 34805.7784570321. The cubic root of 1211442214 is about 1066.0254368440.

Adding to 1211442214 its reverse (4122441121), we get a palindrome (5333883335).

The spelling of 1211442214 in words is "one billion, two hundred eleven million, four hundred forty-two thousand, two hundred fourteen".