222201222021061 has 2 divisors, whose sum is σ = 222201222021062. Its totient is φ = 222201222021060.

The previous prime is 222201222021013. The next prime is 222201222021067. The reversal of 222201222021061 is 160120222102222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132591332958561 + 89609889062500 = 11514831^2 + 9466250^2 .

It is a cyclic number.

It is not a de Polignac number, because 222201222021061 - 2²¹ = 222201219923909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222201222021067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100611010530 + 111100611010531.

It is an arithmetic number, because the mean of its divisors is an integer number (111100611010531).

Almost surely, 2^{222201222021061} is an apocalyptic number.

It is an amenable number.

222201222021061 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201222021061 is an equidigital number, since it uses as much as digits as its factorization.

222201222021061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 222201222021061 its reverse (160120222102222), we get a palindrome (382321444123283).

The spelling of 222201222021061 in words is "two hundred twenty-two trillion, two hundred one billion, two hundred twenty-two million, twenty-one thousand, sixty-one".