1214304430021 has 2 divisors, whose sum is σ = 1214304430022. Its totient is φ = 1214304430020.

The previous prime is 1214304430007. The next prime is 1214304430033. The reversal of 1214304430021 is 1200344034121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1188451005921 + 25853424100 = 1090161^2 + 160790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214304430021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1214304430051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607152215010 + 607152215011.

It is an arithmetic number, because the mean of its divisors is an integer number (607152215011).

Almost surely, 2^{1214304430021} is an apocalyptic number.

It is an amenable number.

1214304430021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214304430021 is an equidigital number, since it uses as much as digits as its factorization.

1214304430021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1214304430021 its reverse (1200344034121), we get a palindrome (2414648464142).

The spelling of 1214304430021 in words is "one trillion, two hundred fourteen billion, three hundred four million, four hundred thirty thousand, twenty-one".