222665071876 has 27 divisors (see below), whose sum is σ = 421966973631. Its totient is φ = 102762832224.

The previous prime is 222665071873. The next prime is 222665071891. The reversal of 222665071876 is 678170566222.

The square root of 222665071876 is 471874.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 73533168900 + 149131902976 = 271170^2 + 386176^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222665071873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12259650 + ... + 12277798.

Almost surely, 2^222665071876 is an apocalyptic number.

222665071876 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

222665071876 is the 471874-th square number.

It is an amenable number.

222665071876 is a deficient number, since it is larger than the sum of its proper divisors (199301901755).

222665071876 is an frugal number, since it uses more digits than its factorization.

222665071876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36328 (or 18164 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 222665071876 in words is "two hundred twenty-two billion, six hundred sixty-five million, seventy-one thousand, eight hundred seventy-six".