100212102120001 has 4 divisors (see below), whose sum is σ = 100217793096900. Its totient is φ = 100206411143104.

The previous prime is 100212102119999. The next prime is 100212102120037. The reversal of 100212102120001 is 100021201212001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 31674384000000 + 68537718120001 = 5628000^2 + 8278751^2 .

It is a cyclic number.

It is not a de Polignac number, because 100212102120001 - 2¹ = 100212102119999 is a prime.

It is a super-2 number, since 2×100212102120001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100212102120401) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 2845462036 + ... + 2845497253.

It is an arithmetic number, because the mean of its divisors is an integer number (25054448274225).

Almost surely, 2^{100212102120001} is an apocalyptic number.

It is an amenable number.

100212102120001 is a deficient number, since it is larger than the sum of its proper divisors (5690976899).

100212102120001 is an equidigital number, since it uses as much as digits as its factorization.

100212102120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690976898.

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

Adding to 100212102120001 its reverse (100021201212001), we get a palindrome (200233303332002).

The spelling of 100212102120001 in words is "one hundred trillion, two hundred twelve billion, one hundred two million, one hundred twenty thousand, one".