22222044146 has 4 divisors (see below), whose sum is σ = 33333066222. Its totient is φ = 11111022072.

The previous prime is 22222044137. The next prime is 22222044181. The reversal of 22222044146 is 64144022222.

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

It can be written as a sum of positive squares in only one way, i.e., 21782512921 + 439531225 = 147589^2 + 20965^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555511035 + ... + 5555511038.

Almost surely, 2^22222044146 is an apocalyptic number.

22222044146 is a deficient number, since it is larger than the sum of its proper divisors (11111022076).

22222044146 is a wasteful number, since it uses less digits than its factorization.

22222044146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11111022075.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 22222044146 its reverse (64144022222), we get a palindrome (86366066368).

The spelling of 22222044146 in words is "twenty-two billion, two hundred twenty-two million, forty-four thousand, one hundred forty-six".