222201211123 has 2 divisors, whose sum is σ = 222201211124. Its totient is φ = 222201211122.

The previous prime is 222201211103. The next prime is 222201211139. The reversal of 222201211123 is 321112102222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222201211123 - 2⁹ = 222201210611 is a prime.

It is a super-2 number, since 2×222201211123² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222201211123.

It is not a weakly prime, because it can be changed into another prime (222201211103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111100605561 + 111100605562.

It is an arithmetic number, because the mean of its divisors is an integer number (111100605562).

Almost surely, 2^222201211123 is an apocalyptic number.

222201211123 is a deficient number, since it is larger than the sum of its proper divisors (1).

222201211123 is an equidigital number, since it uses as much as digits as its factorization.

222201211123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222201211123 its reverse (321112102222), we get a palindrome (543313313345).

The spelling of 222201211123 in words is "two hundred twenty-two billion, two hundred one million, two hundred eleven thousand, one hundred twenty-three".