222202266646 has 16 divisors (see below), whose sum is σ = 333947547648. Its totient is φ = 110886489000.

The previous prime is 222202266623. The next prime is 222202266703. The reversal of 222202266646 is 646662202222.

It is a junction number, because it is equal to n+sod(n) for n = 222202266599 and 222202266608.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7823371 + ... + 7851721.

It is an arithmetic number, because the mean of its divisors is an integer number (20871721728).

Almost surely, 2^222202266646 is an apocalyptic number.

222202266646 is a deficient number, since it is larger than the sum of its proper divisors (111745281002).

222202266646 is a wasteful number, since it uses less digits than its factorization.

222202266646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35787.

The product of its (nonzero) digits is 331776, while the sum is 40.

Adding to 222202266646 its reverse (646662202222), we get a palindrome (868864468868).

The spelling of 222202266646 in words is "two hundred twenty-two billion, two hundred two million, two hundred sixty-six thousand, six hundred forty-six".