222878635229 has 2 divisors, whose sum is σ = 222878635230. Its totient is φ = 222878635228.

The previous prime is 222878635211. The next prime is 222878635271. The reversal of 222878635229 is 922536878222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188920622500 + 33958012729 = 434650^2 + 184277^2 .

It is a cyclic number.

It is not a de Polignac number, because 222878635229 - 2²⁰ = 222877586653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222878635289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111439317614 + 111439317615.

It is an arithmetic number, because the mean of its divisors is an integer number (111439317615).

Almost surely, 2^222878635229 is an apocalyptic number.

It is an amenable number.

222878635229 is a deficient number, since it is larger than the sum of its proper divisors (1).

222878635229 is an equidigital number, since it uses as much as digits as its factorization.

222878635229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 56.

The spelling of 222878635229 in words is "two hundred twenty-two billion, eight hundred seventy-eight million, six hundred thirty-five thousand, two hundred twenty-nine".