222021000001 has 4 divisors (see below), whose sum is σ = 222949958400. Its totient is φ = 221092041604.

The previous prime is 222020999989. The next prime is 222021000013. The reversal of 222021000001 is 100000120222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (222020999989) and next prime (222021000013).

It is a cyclic number.

It is not a de Polignac number, because 222021000001 - 2¹⁹ = 222020475713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222021000601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464478841 + ... + 464479318.

It is an arithmetic number, because the mean of its divisors is an integer number (55737489600).

Almost surely, 2^222021000001 is an apocalyptic number.

It is an amenable number.

222021000001 is a deficient number, since it is larger than the sum of its proper divisors (928958399).

222021000001 is an equidigital number, since it uses as much as digits as its factorization.

222021000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928958398.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 222021000001 its reverse (100000120222), we get a palindrome (322021120223).

The spelling of 222021000001 in words is "two hundred twenty-two billion, twenty-one million, one", and thus it is an aban number.