1000220222002 has 4 divisors (see below), whose sum is σ = 1500330333006. Its totient is φ = 500110111000.

The previous prime is 1000220221969. The next prime is 1000220222003. The reversal of 1000220222002 is 2002220220001.

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

It can be written as a sum of positive squares in only one way, i.e., 976260587481 + 23959634521 = 988059^2 + 154789^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1000220222003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250055055499 + ... + 250055055502.

Almost surely, 2^{1000220222002} is an apocalyptic number.

1000220222002 is a deficient number, since it is larger than the sum of its proper divisors (500110111004).

1000220222002 is an equidigital number, since it uses as much as digits as its factorization.

1000220222002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500110111003.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 1000220222002 its reverse (2002220220001), we get a palindrome (3002440442003).

It can be divided in two parts, 10002 and 20222002, that added together give a square (20232004 = 4498²).

The spelling of 1000220222002 in words is "one trillion, two hundred twenty million, two hundred twenty-two thousand, two".