242221010401 has 2 divisors, whose sum is σ = 242221010402. Its totient is φ = 242221010400.

The previous prime is 242221010363. The next prime is 242221010419. The reversal of 242221010401 is 104010122242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220501619776 + 21719390625 = 469576^2 + 147375^2 .

It is a cyclic number.

It is not a de Polignac number, because 242221010401 - 2²⁵ = 242187455969 is a prime.

It is not a weakly prime, because it can be changed into another prime (242221080401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121110505200 + 121110505201.

It is an arithmetic number, because the mean of its divisors is an integer number (121110505201).

Almost surely, 2^242221010401 is an apocalyptic number.

It is an amenable number.

242221010401 is a deficient number, since it is larger than the sum of its proper divisors (1).

242221010401 is an equidigital number, since it uses as much as digits as its factorization.

242221010401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 242221010401 its reverse (104010122242), we get a palindrome (346231132643).

The spelling of 242221010401 in words is "two hundred forty-two billion, two hundred twenty-one million, ten thousand, four hundred one".