1213213214 has 16 divisors (see below), whose sum is σ = 1835108352. Its totient is φ = 601532088.

The previous prime is 1213213193. The next prime is 1213213217. The reversal of 1213213214 is 4123123121.

It is a super-3 number, since 3×1213213214³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213213217) 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 in 7 ways as a sum of consecutive naturals, for example, 112127 + ... + 122469.

It is an arithmetic number, because the mean of its divisors is an integer number (114694272).

Almost surely, 2^1213213214 is an apocalyptic number.

1213213214 is a deficient number, since it is larger than the sum of its proper divisors (621895138).

1213213214 is a wasteful number, since it uses less digits than its factorization.

1213213214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10831.

The product of its digits is 288, while the sum is 20.

The square root of 1213213214 is about 34831.2103435985. The cubic root of 1213213214 is about 1066.5446559445.

Adding to 1213213214 its reverse (4123123121), we get a palindrome (5336336335).

The spelling of 1213213214 in words is "one billion, two hundred thirteen million, two hundred thirteen thousand, two hundred fourteen".