222861229 has 4 divisors (see below), whose sum is σ = 226187584. Its totient is φ = 219534876.

The previous prime is 222861227. The next prime is 222861239. The reversal of 222861229 is 922168222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222861229 - 2¹ = 222861227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222861194 and 222861203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222861227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1663077 + ... + 1663210.

It is an arithmetic number, because the mean of its divisors is an integer number (56546896).

Almost surely, 2^222861229 is an apocalyptic number.

It is an amenable number.

222861229 is a deficient number, since it is larger than the sum of its proper divisors (3326355).

222861229 is an equidigital number, since it uses as much as digits as its factorization.

222861229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326354.

The product of its digits is 13824, while the sum is 34.

The square root of 222861229 is about 14928.5374032422. The cubic root of 222861229 is about 606.2868848639.

The spelling of 222861229 in words is "two hundred twenty-two million, eight hundred sixty-one thousand, two hundred twenty-nine".