100121012010211 has 4 divisors (see below), whose sum is σ = 100121875752024. Its totient is φ = 100120148268400.

The previous prime is 100121012010209. The next prime is 100121012010241. The reversal of 100121012010211 is 112010210121001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100121012010211 - 2¹ = 100121012010209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100121012010191 and 100121012010200.

It is not an unprimeable number, because it can be changed into a prime (100121012010241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431697010 + ... + 431928871.

It is an arithmetic number, because the mean of its divisors is an integer number (25030468938006).

Almost surely, 2^{100121012010211} is an apocalyptic number.

100121012010211 is a deficient number, since it is larger than the sum of its proper divisors (863741813).

100121012010211 is an equidigital number, since it uses as much as digits as its factorization.

100121012010211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863741812.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 100121012010211 its reverse (112010210121001), we get a palindrome (212131222131212).

The spelling of 100121012010211 in words is "one hundred trillion, one hundred twenty-one billion, twelve million, ten thousand, two hundred eleven".