1002222001 has 4 divisors (see below), whose sum is σ = 1093333104. Its totient is φ = 911110900.

The previous prime is 1002221989. The next prime is 1002222017.

1002222001 is nontrivially palindromic in base 10.

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 a cyclic number.

It is not a de Polignac number, because 1002222001 - 2⁷ = 1002221873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002222041) 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, 45555535 + ... + 45555556.

It is an arithmetic number, because the mean of its divisors is an integer number (273333276).

Almost surely, 2^1002222001 is an apocalyptic number.

1002222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002222001 is a deficient number, since it is larger than the sum of its proper divisors (91111103).

1002222001 is an equidigital number, since it uses as much as digits as its factorization.

1002222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91111102.

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

The square root of 1002222001 is about 31657.8900276061. The cubic root of 1002222001 is about 1000.7401190886.

It can be divided in two parts, 10022 and 22001, that multiplied together give a palindrome (220494022).

The spelling of 1002222001 in words is "one billion, two million, two hundred twenty-two thousand, one".