221122301123123 has 2 divisors, whose sum is σ = 221122301123124. Its totient is φ = 221122301123122.

The previous prime is 221122301123041. The next prime is 221122301123161. The reversal of 221122301123123 is 321321103221122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221122301123123 - 2²⁸ = 221122032687667 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221122301123092 and 221122301123101.

It is not a weakly prime, because it can be changed into another prime (221122301143123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110561150561561 + 110561150561562.

It is an arithmetic number, because the mean of its divisors is an integer number (110561150561562).

Almost surely, 2^{221122301123123} is an apocalyptic number.

221122301123123 is a deficient number, since it is larger than the sum of its proper divisors (1).

221122301123123 is an equidigital number, since it uses as much as digits as its factorization.

221122301123123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 221122301123123 its reverse (321321103221122), we get a palindrome (542443404344245).

The spelling of 221122301123123 in words is "two hundred twenty-one trillion, one hundred twenty-two billion, three hundred one million, one hundred twenty-three thousand, one hundred twenty-three".