100221121122002 has 4 divisors (see below), whose sum is σ = 150331681683006. Its totient is φ = 50110560561000.

The previous prime is 100221121121929. The next prime is 100221121122049. The reversal of 100221121122002 is 200221121122001.

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., 87778704402841 + 12442416719161 = 9369029^2 + 3527381^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25055280280499 + ... + 25055280280502.

Almost surely, 2^{100221121122002} is an apocalyptic number.

100221121122002 is a deficient number, since it is larger than the sum of its proper divisors (50110560561004).

100221121122002 is an equidigital number, since it uses as much as digits as its factorization.

100221121122002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50110560561003.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100221121122002 its reverse (200221121122001), we get a palindrome (300442242244003).

Subtracting 100221121122002 from its reverse (200221121122001), we obtain a palindrome (99999999999999).

The spelling of 100221121122002 in words is "one hundred trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, two".