223112214421 has 2 divisors, whose sum is σ = 223112214422. Its totient is φ = 223112214420.

The previous prime is 223112214401. The next prime is 223112214443. The reversal of 223112214421 is 124412211322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145856011921 + 77256202500 = 381911^2 + 277950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223112214421 is a prime.

It is a super-3 number, since 3×223112214421³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223112214401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111556107210 + 111556107211.

It is an arithmetic number, because the mean of its divisors is an integer number (111556107211).

Almost surely, 2^223112214421 is an apocalyptic number.

It is an amenable number.

223112214421 is a deficient number, since it is larger than the sum of its proper divisors (1).

223112214421 is an equidigital number, since it uses as much as digits as its factorization.

223112214421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 25.

Adding to 223112214421 its reverse (124412211322), we get a palindrome (347524425743).

The spelling of 223112214421 in words is "two hundred twenty-three billion, one hundred twelve million, two hundred fourteen thousand, four hundred twenty-one".