1223212214 has 16 divisors (see below), whose sum is σ = 2097398688. Its totient is φ = 524117952.

The previous prime is 1223212213. The next prime is 1223212217. The reversal of 1223212214 is 4122123221.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223212213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95282 + ... + 107354.

It is an arithmetic number, because the mean of its divisors is an integer number (131087418).

Almost surely, 2^1223212214 is an apocalyptic number.

1223212214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1223212214 is a deficient number, since it is larger than the sum of its proper divisors (874186474).

1223212214 is a wasteful number, since it uses less digits than its factorization.

1223212214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19319.

The product of its digits is 384, while the sum is 20.

The square root of 1223212214 is about 34974.4508748887. The cubic root of 1223212214 is about 1069.4667077840.

Adding to 1223212214 its reverse (4122123221), we get a palindrome (5345335435).

The spelling of 1223212214 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, two hundred fourteen".