1214412221 has 8 divisors (see below), whose sum is σ = 1402743744. Its totient is φ = 1039069120.

The previous prime is 1214412211. The next prime is 1214412233. The reversal of 1214412221 is 1222144121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1214412221 - 2¹⁰ = 1214411197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214412193 and 1214412202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214412211) 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, 3246905 + ... + 3247278.

It is an arithmetic number, because the mean of its divisors is an integer number (175342968).

Almost surely, 2^1214412221 is an apocalyptic number.

1214412221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1214412221 is a deficient number, since it is larger than the sum of its proper divisors (188331523).

1214412221 is a wasteful number, since it uses less digits than its factorization.

1214412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6494211.

The product of its digits is 256, while the sum is 20.

The square root of 1214412221 is about 34848.4177689605. The cubic root of 1214412221 is about 1066.8958922183.

Adding to 1214412221 its reverse (1222144121), we get a palindrome (2436556342).

The spelling of 1214412221 in words is "one billion, two hundred fourteen million, four hundred twelve thousand, two hundred twenty-one".