20420022420241 has 2 divisors, whose sum is σ = 20420022420242. Its totient is φ = 20420022420240.

The previous prime is 20420022420167. The next prime is 20420022420257. The reversal of 20420022420241 is 14202422002402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18338050467025 + 2081971953216 = 4282295^2 + 1442904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20420022420241 is a prime.

It is not a weakly prime, because it can be changed into another prime (20420022450241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10210011210120 + 10210011210121.

It is an arithmetic number, because the mean of its divisors is an integer number (10210011210121).

Almost surely, 2^{20420022420241} is an apocalyptic number.

It is an amenable number.

20420022420241 is a deficient number, since it is larger than the sum of its proper divisors (1).

20420022420241 is an equidigital number, since it uses as much as digits as its factorization.

20420022420241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 25.

Adding to 20420022420241 its reverse (14202422002402), we get a palindrome (34622444422643).

The spelling of 20420022420241 in words is "twenty trillion, four hundred twenty billion, twenty-two million, four hundred twenty thousand, two hundred forty-one".