100121210012002 has 4 divisors (see below), whose sum is σ = 150181815018006. Its totient is φ = 50060605006000.

The previous prime is 100121210011967. The next prime is 100121210012101. The reversal of 100121210012002 is 200210012121001.

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., 64345248359401 + 35775961652601 = 8021549^2 + 5981301^2 .

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, 25030302502999 + ... + 25030302503002.

Almost surely, 2^{100121210012002} is an apocalyptic number.

100121210012002 is a deficient number, since it is larger than the sum of its proper divisors (50060605006004).

100121210012002 is an equidigital number, since it uses as much as digits as its factorization.

100121210012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50060605006003.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 100121210012002 its reverse (200210012121001), we get a palindrome (300331222133003).

It can be divided in two parts, 10012121001 and 2002, that multiplied together give a palindrome (20044266244002).

The spelling of 100121210012002 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten million, twelve thousand, two".