2002222168 has 8 divisors (see below), whose sum is σ = 3754166580. Its totient is φ = 1001111080.

The previous prime is 2002222153. The next prime is 2002222169. The reversal of 2002222168 is 8612222002.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2002222168² = 8017787220061240448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002222169) by changing a digit.

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, 125138878 + ... + 125138893.

Almost surely, 2^2002222168 is an apocalyptic number.

It is an amenable number.

2002222168 is a deficient number, since it is larger than the sum of its proper divisors (1751944412).

2002222168 is a wasteful number, since it uses less digits than its factorization.

2002222168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250277777 (or 250277773 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 2002222168 is about 44746.1972462465. The cubic root of 2002222168 is about 1260.3875032212.

The spelling of 2002222168 in words is "two billion, two million, two hundred twenty-two thousand, one hundred sixty-eight".