222424424251 has 2 divisors, whose sum is σ = 222424424252. Its totient is φ = 222424424250.

The previous prime is 222424424231. The next prime is 222424424291. The reversal of 222424424251 is 152424424222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222424424251 - 2¹³ = 222424416059 is a prime.

It is a super-2 number, since 2×222424424251² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (222424424221) 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, 111212212125 + 111212212126.

It is an arithmetic number, because the mean of its divisors is an integer number (111212212126).

Almost surely, 2^222424424251 is an apocalyptic number.

222424424251 is a deficient number, since it is larger than the sum of its proper divisors (1).

222424424251 is an equidigital number, since it uses as much as digits as its factorization.

222424424251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81920, while the sum is 34.

Adding to 222424424251 its reverse (152424424222), we get a palindrome (374848848473).

The spelling of 222424424251 in words is "two hundred twenty-two billion, four hundred twenty-four million, four hundred twenty-four thousand, two hundred fifty-one".