1112221220002 has 4 divisors (see below), whose sum is σ = 1668331830006. Its totient is φ = 556110610000.

The previous prime is 1112221219937. The next prime is 1112221220017. The reversal of 1112221220002 is 2000221222111.

It is a happy number.

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., 979682264521 + 132538955481 = 989789^2 + 364059^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278055304999 + ... + 278055305002.

Almost surely, 2^{1112221220002} is an apocalyptic number.

1112221220002 is a deficient number, since it is larger than the sum of its proper divisors (556110610004).

1112221220002 is an equidigital number, since it uses as much as digits as its factorization.

1112221220002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556110610003.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1112221220002 its reverse (2000221222111), we get a palindrome (3112442442113).

The spelling of 1112221220002 in words is "one trillion, one hundred twelve billion, two hundred twenty-one million, two hundred twenty thousand, two".