1214212213 has 2 divisors, whose sum is σ = 1214212214. Its totient is φ = 1214212212.

The previous prime is 1214212189. The next prime is 1214212243. The reversal of 1214212213 is 3122124121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1176352804 + 37859409 = 34298^2 + 6153^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214212213 - 2²¹ = 1212115061 is a prime.

It is a super-2 number, since 2×1214212213² = 2948622596396714738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214212243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607106106 + 607106107.

It is an arithmetic number, because the mean of its divisors is an integer number (607106107).

Almost surely, 2^1214212213 is an apocalyptic number.

It is an amenable number.

1214212213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214212213 is an equidigital number, since it uses as much as digits as its factorization.

1214212213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 1214212213 is about 34845.5479652710. The cubic root of 1214212213 is about 1066.8373180852.

Adding to 1214212213 its reverse (3122124121), we get a palindrome (4336336334).

The spelling of 1214212213 in words is "one billion, two hundred fourteen million, two hundred twelve thousand, two hundred thirteen".