100120021200001 has 4 divisors (see below), whose sum is σ = 109221841309104. Its totient is φ = 91018201090900.

The previous prime is 100120021199993. The next prime is 100120021200007. The reversal of 100120021200001 is 100002120021001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100120021200001 - 2³ = 100120021199993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100120021200007) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4550910054535 + ... + 4550910054556.

It is an arithmetic number, because the mean of its divisors is an integer number (27305460327276).

Almost surely, 2^{100120021200001} is an apocalyptic number.

100120021200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100120021200001 is a deficient number, since it is larger than the sum of its proper divisors (9101820109103).

100120021200001 is an equidigital number, since it uses as much as digits as its factorization.

100120021200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101820109102.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100120021200001 its reverse (100002120021001), we get a palindrome (200122141221002).

The spelling of 100120021200001 in words is "one hundred trillion, one hundred twenty billion, twenty-one million, two hundred thousand, one".