1214220211 has 4 divisors (see below), whose sum is σ = 1217602800. Its totient is φ = 1210837624.

The previous prime is 1214220179. The next prime is 1214220229. The reversal of 1214220211 is 1120224121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1120224121 = 67 ⋅16719763.

It is a cyclic number.

It is not a de Polignac number, because 1214220211 - 2⁵ = 1214220179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214220011) 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, 1690756 + ... + 1691473.

It is an arithmetic number, because the mean of its divisors is an integer number (304400700).

Almost surely, 2^1214220211 is an apocalyptic number.

1214220211 is a deficient number, since it is larger than the sum of its proper divisors (3382589).

1214220211 is an equidigital number, since it uses as much as digits as its factorization.

1214220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382588.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1214220211 is about 34845.6627286668. The cubic root of 1214220211 is about 1066.8396604946.

Adding to 1214220211 its reverse (1120224121), we get a palindrome (2334444332).

The spelling of 1214220211 in words is "one billion, two hundred fourteen million, two hundred twenty thousand, two hundred eleven".