222431455513 has 2 divisors, whose sum is σ = 222431455514. Its totient is φ = 222431455512.

The previous prime is 222431455507. The next prime is 222431455523. The reversal of 222431455513 is 315554134222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191190186009 + 31241269504 = 437253^2 + 176752^2 .

It is a cyclic number.

It is not a de Polignac number, because 222431455513 - 2¹³ = 222431447321 is a prime.

It is not a weakly prime, because it can be changed into another prime (222431455523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111215727756 + 111215727757.

It is an arithmetic number, because the mean of its divisors is an integer number (111215727757).

Almost surely, 2^222431455513 is an apocalyptic number.

It is an amenable number.

222431455513 is a deficient number, since it is larger than the sum of its proper divisors (1).

222431455513 is an equidigital number, since it uses as much as digits as its factorization.

222431455513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144000, while the sum is 37.

Adding to 222431455513 its reverse (315554134222), we get a palindrome (537985589735).

The spelling of 222431455513 in words is "two hundred twenty-two billion, four hundred thirty-one million, four hundred fifty-five thousand, five hundred thirteen".