10222144321421 has 2 divisors, whose sum is σ = 10222144321422. Its totient is φ = 10222144321420.

The previous prime is 10222144321297. The next prime is 10222144321439. The reversal of 10222144321421 is 12412344122201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10221512352100 + 631969321 = 3197110^2 + 25139^2 .

It is a cyclic number.

It is not a de Polignac number, because 10222144321421 - 2²² = 10222140127117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10222144321481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111072160710 + 5111072160711.

It is an arithmetic number, because the mean of its divisors is an integer number (5111072160711).

Almost surely, 2^{10222144321421} is an apocalyptic number.

It is an amenable number.

10222144321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10222144321421 is an equidigital number, since it uses as much as digits as its factorization.

10222144321421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 10222144321421 its reverse (12412344122201), we get a palindrome (22634488443622).

The spelling of 10222144321421 in words is "ten trillion, two hundred twenty-two billion, one hundred forty-four million, three hundred twenty-one thousand, four hundred twenty-one".