222111121020013 has 2 divisors, whose sum is σ = 222111121020014. Its totient is φ = 222111121020012.

The previous prime is 222111121019923. The next prime is 222111121020091. The reversal of 222111121020013 is 310020121111222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219122502967369 + 2988618052644 = 14802787^2 + 1728762^2 .

It is a cyclic number.

It is not a de Polignac number, because 222111121020013 - 2¹³ = 222111121011821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222111121020413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111055560510006 + 111055560510007.

It is an arithmetic number, because the mean of its divisors is an integer number (111055560510007).

Almost surely, 2^{222111121020013} is an apocalyptic number.

It is an amenable number.

222111121020013 is a deficient number, since it is larger than the sum of its proper divisors (1).

222111121020013 is an equidigital number, since it uses as much as digits as its factorization.

222111121020013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 222111121020013 its reverse (310020121111222), we get a palindrome (532131242131235).

The spelling of 222111121020013 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twenty-one million, twenty thousand, thirteen".