222030220030121 has 2 divisors, whose sum is σ = 222030220030122. Its totient is φ = 222030220030120.

The previous prime is 222030220030093. The next prime is 222030220030141. The reversal of 222030220030121 is 121030022030222.

It is a happy number.

It is an a-pointer prime, because the next prime (222030220030141) can be obtained adding 222030220030121 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126327259411600 + 95702960618521 = 11239540^2 + 9782789^2 .

It is a cyclic number.

It is not a de Polignac number, because 222030220030121 - 2²² = 222030215835817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222030220030093 and 222030220030102.

It is not a weakly prime, because it can be changed into another prime (222030220030141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111015110015060 + 111015110015061.

It is an arithmetic number, because the mean of its divisors is an integer number (111015110015061).

Almost surely, 2^{222030220030121} is an apocalyptic number.

It is an amenable number.

222030220030121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222030220030121 is an equidigital number, since it uses as much as digits as its factorization.

222030220030121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222030220030121 its reverse (121030022030222), we get a palindrome (343060242060343).

The spelling of 222030220030121 in words is "two hundred twenty-two trillion, thirty billion, two hundred twenty million, thirty thousand, one hundred twenty-one".