2522004204221 has 2 divisors, whose sum is σ = 2522004204222. Its totient is φ = 2522004204220.

The previous prime is 2522004204191. The next prime is 2522004204227. The reversal of 2522004204221 is 1224024002252.

It is a happy number.

2522004204221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1299075652900 + 1222928551321 = 1139770^2 + 1105861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2522004204221 - 2⁶ = 2522004204157 is a prime.

It is a super-2 number, since 2×2522004204221² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2522004204227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261002102110 + 1261002102111.

It is an arithmetic number, because the mean of its divisors is an integer number (1261002102111).

Almost surely, 2^{2522004204221} is an apocalyptic number.

It is an amenable number.

2522004204221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2522004204221 is an equidigital number, since it uses as much as digits as its factorization.

2522004204221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 2522004204221 its reverse (1224024002252), we get a palindrome (3746028206473).

The spelling of 2522004204221 in words is "two trillion, five hundred twenty-two billion, four million, two hundred four thousand, two hundred twenty-one".