2122221004 has 12 divisors (see below), whose sum is σ = 3725986264. Its totient is φ = 1057653504.

The previous prime is 2122220983. The next prime is 2122221019. The reversal of 2122221004 is 4001222212.

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 in 3 ways as a sum of consecutive naturals, for example, 862869 + ... + 865324.

Almost surely, 2^2122221004 is an apocalyptic number.

It is an amenable number.

2122221004 is a deficient number, since it is larger than the sum of its proper divisors (1603765260).

2122221004 is a wasteful number, since it uses less digits than its factorization.

2122221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728504 (or 1728502 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 2122221004 is about 46067.5699814957. The cubic root of 2122221004 is about 1285.0801130994.

Adding to 2122221004 its reverse (4001222212), we get a palindrome (6123443216).

The spelling of 2122221004 in words is "two billion, one hundred twenty-two million, two hundred twenty-one thousand, four".