1005020222 has 4 divisors (see below), whose sum is σ = 1507530336. Its totient is φ = 502510110.

The previous prime is 1005020207. The next prime is 1005020227. The reversal of 1005020222 is 2220205001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2220205001 = 7 ⋅317172143.

It is a junction number, because it is equal to n+sod(n) for n = 1005020197 and 1005020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005020227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251255054 + ... + 251255057.

It is an arithmetic number, because the mean of its divisors is an integer number (376882584).

Almost surely, 2^1005020222 is an apocalyptic number.

1005020222 is a deficient number, since it is larger than the sum of its proper divisors (502510114).

1005020222 is an equidigital number, since it uses as much as digits as its factorization.

1005020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502510113.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1005020222 is about 31702.0539082249. The cubic root of 1005020222 is about 1001.6706148252.

Adding to 1005020222 its reverse (2220205001), we get a palindrome (3225225223).

The spelling of 1005020222 in words is "one billion, five million, twenty thousand, two hundred twenty-two".