222002020122121 has 2 divisors, whose sum is σ = 222002020122122. Its totient is φ = 222002020122120.

The previous prime is 222002020122109. The next prime is 222002020122151. The reversal of 222002020122121 is 121221020200222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167550372015625 + 54451648106496 = 12944125^2 + 7379136^2 .

It is a cyclic number.

It is not a de Polignac number, because 222002020122121 - 2⁷ = 222002020121993 is a prime.

It is not a weakly prime, because it can be changed into another prime (222002020122151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111001010061060 + 111001010061061.

It is an arithmetic number, because the mean of its divisors is an integer number (111001010061061).

Almost surely, 2^{222002020122121} is an apocalyptic number.

It is an amenable number.

222002020122121 is a deficient number, since it is larger than the sum of its proper divisors (1).

222002020122121 is an equidigital number, since it uses as much as digits as its factorization.

222002020122121 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 222002020122121 its reverse (121221020200222), we get a palindrome (343223040322343).

The spelling of 222002020122121 in words is "two hundred twenty-two trillion, two billion, twenty million, one hundred twenty-two thousand, one hundred twenty-one".