1002221122 has 16 divisors (see below), whose sum is σ = 1718502912. Its totient is φ = 429420960.

The previous prime is 1002221119. The next prime is 1002221137. The reversal of 1002221122 is 2211222001.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99247 + ... + 108877.

It is an arithmetic number, because the mean of its divisors is an integer number (107406432).

Almost surely, 2^1002221122 is an apocalyptic number.

1002221122 is a deficient number, since it is larger than the sum of its proper divisors (716281790).

1002221122 is an equidigital number, since it uses as much as digits as its factorization.

1002221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17073.

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

The square root of 1002221122 is about 31657.8761448079. The cubic root of 1002221122 is about 1000.7398265217.

Adding to 1002221122 its reverse (2211222001), we get a palindrome (3213443123).

It can be divided in two parts, 100 and 2221122, that added together give a palindrome (2221222).

The spelling of 1002221122 in words is "one billion, two million, two hundred twenty-one thousand, one hundred twenty-two".