2222000021 has 8 divisors (see below), whose sum is σ = 2248473984. Its totient is φ = 2195645760.

The previous prime is 2221999951. The next prime is 2222000029. The reversal of 2222000021 is 1200002222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2222000021 - 2¹⁴ = 2221983637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221999966 and 2222000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222000029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7700 + ... + 67106.

It is an arithmetic number, because the mean of its divisors is an integer number (281059248).

Almost surely, 2^2222000021 is an apocalyptic number.

It is an amenable number.

2222000021 is a deficient number, since it is larger than the sum of its proper divisors (26473963).

2222000021 is a wasteful number, since it uses less digits than its factorization.

2222000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59851.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2222000021 is about 47138.0952203205. The cubic root of 2222000021 is about 1304.9123845211.

Adding to 2222000021 its reverse (1200002222), we get a palindrome (3422002243).

The spelling of 2222000021 in words is "two billion, two hundred twenty-two million, twenty-one", and thus it is an aban number.