1001100222002 has 16 divisors (see below), whose sum is σ = 1535428184472. Its totient is φ = 489358047360.

The previous prime is 1001100221941. The next prime is 1001100222037. The reversal of 1001100222002 is 2002220011001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1001038269361 + 61952641 = 1000519^2 + 7871^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 16775093 + ... + 16834664.

Almost surely, 2^{1001100222002} is an apocalyptic number.

1001100222002 is a deficient number, since it is larger than the sum of its proper divisors (534327962470).

1001100222002 is a wasteful number, since it uses less digits than its factorization.

1001100222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33610093.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1001100222002 its reverse (2002220011001), we get a palindrome (3003320233003).

The spelling of 1001100222002 in words is "one trillion, one billion, one hundred million, two hundred twenty-two thousand, two".