22226667778 has 16 divisors (see below), whose sum is σ = 38125756224. Its totient is φ = 9519990480.

The previous prime is 22226667767. The next prime is 22226667781. The reversal of 22226667778 is 87776662222.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452853 + ... + 499528.

It is an arithmetic number, because the mean of its divisors is an integer number (2382859764).

Almost surely, 2^22226667778 is an apocalyptic number.

22226667778 is a deficient number, since it is larger than the sum of its proper divisors (15899088446).

22226667778 is a wasteful number, since it uses less digits than its factorization.

22226667778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954057.

The product of its digits is 9483264, while the sum is 55.

The spelling of 22226667778 in words is "twenty-two billion, two hundred twenty-six million, six hundred sixty-seven thousand, seven hundred seventy-eight".