222011122121123 has 2 divisors, whose sum is σ = 222011122121124. Its totient is φ = 222011122121122.

The previous prime is 222011122121081. The next prime is 222011122121137. The reversal of 222011122121123 is 321121221110222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222011122121123 - 2¹⁸ = 222011121858979 is a prime.

It is a super-2 number, since 2×222011122121123² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222011122121923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111005561060561 + 111005561060562.

It is an arithmetic number, because the mean of its divisors is an integer number (111005561060562).

Almost surely, 2^{222011122121123} is an apocalyptic number.

222011122121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222011122121123 is an equidigital number, since it uses as much as digits as its factorization.

222011122121123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 222011122121123 its reverse (321121221110222), we get a palindrome (543132343231345).

The spelling of 222011122121123 in words is "two hundred twenty-two trillion, eleven billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred twenty-three".