1668922222 has 16 divisors (see below), whose sum is σ = 2804774832. Its totient is φ = 738097920.

The previous prime is 1668922219. The next prime is 1668922253. The reversal of 1668922222 is 2222298661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024323 + ... + 1025950.

It is an arithmetic number, because the mean of its divisors is an integer number (175298427).

Almost surely, 2^1668922222 is an apocalyptic number.

1668922222 is a deficient number, since it is larger than the sum of its proper divisors (1135852610).

1668922222 is a wasteful number, since it uses less digits than its factorization.

1668922222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050323.

The product of its digits is 82944, while the sum is 40.

The square root of 1668922222 is about 40852.4445045826. Note that the first 3 decimals coincide. The cubic root of 1668922222 is about 1186.1657117115.

The spelling of 1668922222 in words is "one billion, six hundred sixty-eight million, nine hundred twenty-two thousand, two hundred twenty-two".