1020222002 has 4 divisors (see below), whose sum is σ = 1530333006. Its totient is φ = 510111000.

The previous prime is 1020221977. The next prime is 1020222013. The reversal of 1020222002 is 2002220201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2002220201 = 2939 ⋅681259.

It can be written as a sum of positive squares in only one way, i.e., 563160361 + 457061641 = 23731^2 + 21379^2 .

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 as a sum of consecutive naturals, namely, 255055499 + ... + 255055502.

Almost surely, 2^1020222002 is an apocalyptic number.

1020222002 is a deficient number, since it is larger than the sum of its proper divisors (510111004).

1020222002 is an equidigital number, since it uses as much as digits as its factorization.

1020222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510111003.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 1020222002 is about 31940.9142323760. The cubic root of 1020222002 is about 1006.6957344111.

Adding to 1020222002 its reverse (2002220201), we get a palindrome (3022442203).

The spelling of 1020222002 in words is "one billion, twenty million, two hundred twenty-two thousand, two".