20010314221 has 2 divisors, whose sum is σ = 20010314222. Its totient is φ = 20010314220.

The previous prime is 20010314201. The next prime is 20010314231. The reversal of 20010314221 is 12241301002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19492068996 + 518245225 = 139614^2 + 22765^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010314221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20010314195 and 20010314204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010314201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005157110 + 10005157111.

It is an arithmetic number, because the mean of its divisors is an integer number (10005157111).

Almost surely, 2^20010314221 is an apocalyptic number.

It is an amenable number.

20010314221 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010314221 is an equidigital number, since it uses as much as digits as its factorization.

20010314221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20010314221 its reverse (12241301002), we get a palindrome (32251615223).

The spelling of 20010314221 in words is "twenty billion, ten million, three hundred fourteen thousand, two hundred twenty-one".