22233019978 has 16 divisors (see below), whose sum is σ = 35918103816. Its totient is φ = 10260472320.

The previous prime is 22233019901. The next prime is 22233019987. The reversal of 22233019978 is 87991033222.

It can be written as a sum of positive squares in 4 ways, for example, as 11420555689 + 10812464289 = 106867^2 + 103983^2 .

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, 319698 + ... + 382978.

Almost surely, 2^22233019978 is an apocalyptic number.

22233019978 is a deficient number, since it is larger than the sum of its proper divisors (13685083838).

22233019978 is a wasteful number, since it uses less digits than its factorization.

22233019978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76809.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 22233019978 in words is "twenty-two billion, two hundred thirty-three million, nineteen thousand, nine hundred seventy-eight".