100121202002 has 4 divisors (see below), whose sum is σ = 150181803006. Its totient is φ = 50060601000.

The previous prime is 100121201987. The next prime is 100121202037. The reversal of 100121202002 is 200202121001.

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., 52496432641 + 47624769361 = 229121^2 + 218231^2 .

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 as a sum of consecutive naturals, namely, 25030300499 + ... + 25030300502.

Almost surely, 2^100121202002 is an apocalyptic number.

100121202002 is a deficient number, since it is larger than the sum of its proper divisors (50060601004).

100121202002 is an equidigital number, since it uses as much as digits as its factorization.

100121202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50060601003.

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

Adding to 100121202002 its reverse (200202121001), we get a palindrome (300323323003).

The spelling of 100121202002 in words is "one hundred billion, one hundred twenty-one million, two hundred two thousand, two".