100120002101021 has 8 divisors (see below), whose sum is σ = 114453218518080. Its totient is φ = 85794375427488.

The previous prime is 100120002100967. The next prime is 100120002101023. The reversal of 100120002101021 is 120101200021001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100120002101021 - 2⁶ = 100120002100957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100120002100993 and 100120002101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120002101023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897407611 + ... + 1897460376.

It is an arithmetic number, because the mean of its divisors is an integer number (14306652314760).

Almost surely, 2^{100120002101021} is an apocalyptic number.

It is an amenable number.

100120002101021 is a deficient number, since it is larger than the sum of its proper divisors (14333216417059).

100120002101021 is an equidigital number, since it uses as much as digits as its factorization.

100120002101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3794871763.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 100120002101021 its reverse (120101200021001), we get a palindrome (220221202122022).

The spelling of 100120002101021 in words is "one hundred trillion, one hundred twenty billion, two million, one hundred one thousand, twenty-one".