10022212221221 has 2 divisors, whose sum is σ = 10022212221222. Its totient is φ = 10022212221220.

The previous prime is 10022212221169. The next prime is 10022212221233. The reversal of 10022212221221 is 12212221222001.

10022212221221 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., 6091093104196 + 3931119117025 = 2468014^2 + 1982705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10022212221221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10022212221193 and 10022212221202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10022212220221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011106110610 + 5011106110611.

It is an arithmetic number, because the mean of its divisors is an integer number (5011106110611).

Almost surely, 2^{10022212221221} is an apocalyptic number.

It is an amenable number.

10022212221221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10022212221221 is an equidigital number, since it uses as much as digits as its factorization.

10022212221221 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 20.

Adding to 10022212221221 its reverse (12212221222001), we get a palindrome (22234433443222).

The spelling of 10022212221221 in words is "ten trillion, twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".