1214242111 has 2 divisors, whose sum is σ = 1214242112. Its totient is φ = 1214242110.

The previous prime is 1214242091. The next prime is 1214242121. The reversal of 1214242111 is 1112424121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214242111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214242121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607121055 + 607121056.

It is an arithmetic number, because the mean of its divisors is an integer number (607121056).

Almost surely, 2^1214242111 is an apocalyptic number.

1214242111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214242111 is an equidigital number, since it uses as much as digits as its factorization.

1214242111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 19.

The square root of 1214242111 is about 34845.9769700894. The cubic root of 1214242111 is about 1066.8460743910.

Adding to 1214242111 its reverse (1112424121), we get a palindrome (2326666232).

The spelling of 1214242111 in words is "one billion, two hundred fourteen million, two hundred forty-two thousand, one hundred eleven".