222291439705 has 4 divisors (see below), whose sum is σ = 266749727652. Its totient is φ = 177833151760.

The previous prime is 222291439703. The next prime is 222291439717. The reversal of 222291439705 is 507934192222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58259959641 + 164031480064 = 241371^2 + 405008^2 .

It is not a de Polignac number, because 222291439705 - 2¹ = 222291439703 is a prime.

It is a super-2 number, since 2×222291439705² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222291439703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22229143966 + ... + 22229143975.

It is an arithmetic number, because the mean of its divisors is an integer number (66687431913).

Almost surely, 2^222291439705 is an apocalyptic number.

It is an amenable number.

222291439705 is a deficient number, since it is larger than the sum of its proper divisors (44458287947).

222291439705 is an equidigital number, since it uses as much as digits as its factorization.

222291439705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44458287946.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 222291439705 in words is "two hundred twenty-two billion, two hundred ninety-one million, four hundred thirty-nine thousand, seven hundred five".