1002222211 has 4 divisors (see below), whose sum is σ = 1002464424. Its totient is φ = 1001980000.

The previous prime is 1002222121. The next prime is 1002222229. The reversal of 1002222211 is 1122222001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1002222211 - 2¹⁹ = 1001697923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002222191 and 1002222200.

It is not an unprimeable number, because it can be changed into a prime (1002222311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114790 + ... + 123211.

It is an arithmetic number, because the mean of its divisors is an integer number (250616106).

Almost surely, 2^1002222211 is an apocalyptic number.

1002222211 is a deficient number, since it is larger than the sum of its proper divisors (242213).

1002222211 is an equidigital number, since it uses as much as digits as its factorization.

1002222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242212.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1002222211 is about 31657.8933443146. The cubic root of 1002222211 is about 1000.7401889851.

Adding to 1002222211 its reverse (1122222001), we get a palindrome (2124444212).

The spelling of 1002222211 in words is "one billion, two million, two hundred twenty-two thousand, two hundred eleven".