10022220012121 has 2 divisors, whose sum is σ = 10022220012122. Its totient is φ = 10022220012120.

The previous prime is 10022220012047. The next prime is 10022220012137. The reversal of 10022220012121 is 12121002222001.

It is a happy number.

It is an a-pointer prime, because the next prime (10022220012137) can be obtained adding 10022220012121 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10022219992521 + 19600 = 3165789^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 10022220012121 - 2¹¹ = 10022220010073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10022220012095 and 10022220012104.

It is not a weakly prime, because it can be changed into another prime (10022220012221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011110006060 + 5011110006061.

It is an arithmetic number, because the mean of its divisors is an integer number (5011110006061).

Almost surely, 2^{10022220012121} is an apocalyptic number.

It is an amenable number.

10022220012121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10022220012121 is an equidigital number, since it uses as much as digits as its factorization.

10022220012121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10022220012121 its reverse (12121002222001), we get a palindrome (22143222234122).

The spelling of 10022220012121 in words is "ten trillion, twenty-two billion, two hundred twenty million, twelve thousand, one hundred twenty-one".