22022012220121 has 2 divisors, whose sum is σ = 22022012220122. Its totient is φ = 22022012220120.

The previous prime is 22022012220113. The next prime is 22022012220157. The reversal of 22022012220121 is 12102221022022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16804785204496 + 5217227015625 = 4099364^2 + 2284125^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022012220121 - 2³ = 22022012220113 is a prime.

It is not a weakly prime, because it can be changed into another prime (22022012220161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011006110060 + 11011006110061.

It is an arithmetic number, because the mean of its divisors is an integer number (11011006110061).

Almost surely, 2^{22022012220121} is an apocalyptic number.

It is an amenable number.

22022012220121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022012220121 is an equidigital number, since it uses as much as digits as its factorization.

22022012220121 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 22022012220121 its reverse (12102221022022), we get a palindrome (34124233242143).

The spelling of 22022012220121 in words is "twenty-two trillion, twenty-two billion, twelve million, two hundred twenty thousand, one hundred twenty-one".