214331144021 has 2 divisors, whose sum is σ = 214331144022. Its totient is φ = 214331144020.

The previous prime is 214331144009. The next prime is 214331144059. The reversal of 214331144021 is 120441133412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190995220900 + 23335923121 = 437030^2 + 152761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214331144021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214331144221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107165572010 + 107165572011.

It is an arithmetic number, because the mean of its divisors is an integer number (107165572011).

Almost surely, 2^214331144021 is an apocalyptic number.

It is an amenable number.

214331144021 is a deficient number, since it is larger than the sum of its proper divisors (1).

214331144021 is an equidigital number, since it uses as much as digits as its factorization.

214331144021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 214331144021 its reverse (120441133412), we get a palindrome (334772277433).

The spelling of 214331144021 in words is "two hundred fourteen billion, three hundred thirty-one million, one hundred forty-four thousand, twenty-one".