22222101221123 has 2 divisors, whose sum is σ = 22222101221124. Its totient is φ = 22222101221122.

The previous prime is 22222101221081. The next prime is 22222101221167. The reversal of 22222101221123 is 32112210122222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22222101221123 - 2⁶ = 22222101221059 is a prime.

It is a super-2 number, since 2×22222101221123² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22222101221183) 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, 11111050610561 + 11111050610562.

It is an arithmetic number, because the mean of its divisors is an integer number (11111050610562).

Almost surely, 2^{22222101221123} is an apocalyptic number.

22222101221123 is a deficient number, since it is larger than the sum of its proper divisors (1).

22222101221123 is an equidigital number, since it uses as much as digits as its factorization.

22222101221123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 22222101221123 its reverse (32112210122222), we get a palindrome (54334311343345).

The spelling of 22222101221123 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, one hundred twenty-three".