1002142222 has 4 divisors (see below), whose sum is σ = 1503213336. Its totient is φ = 501071110.

The previous prime is 1002142217. The next prime is 1002142247. The reversal of 1002142222 is 2222412001.

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

It is a junction number, because it is equal to n+sod(n) for n = 1002142196 and 1002142205.

It is a congruent number.

It is an unprimeable number.

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, 250535554 + ... + 250535557.

It is an arithmetic number, because the mean of its divisors is an integer number (375803334).

Almost surely, 2^1002142222 is an apocalyptic number.

1002142222 is a deficient number, since it is larger than the sum of its proper divisors (501071114).

1002142222 is an equidigital number, since it uses as much as digits as its factorization.

1002142222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501071113.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1002142222 is about 31656.6299848863. The cubic root of 1002142222 is about 1000.7135647043.

Adding to 1002142222 its reverse (2222412001), we get a palindrome (3224554223).

The spelling of 1002142222 in words is "one billion, two million, one hundred forty-two thousand, two hundred twenty-two".