120102021212101 has 4 divisors (see below), whose sum is σ = 122070906805804. Its totient is φ = 118133135618400.

The previous prime is 120102021212081. The next prime is 120102021212123. The reversal of 120102021212101 is 101212120201021.

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 31311466792225 + 88790554419876 = 5595665^2 + 9422874^2 .

It is a cyclic number.

It is not a de Polignac number, because 120102021212101 - 2⁷ = 120102021211973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102021212191) 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, 984442796760 + ... + 984442796881.

It is an arithmetic number, because the mean of its divisors is an integer number (30517726701451).

Almost surely, 2^{120102021212101} is an apocalyptic number.

It is an amenable number.

120102021212101 is a deficient number, since it is larger than the sum of its proper divisors (1968885593703).

120102021212101 is an equidigital number, since it uses as much as digits as its factorization.

120102021212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968885593702.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 120102021212101 its reverse (101212120201021), we get a palindrome (221314141413122).

The spelling of 120102021212101 in words is "one hundred twenty trillion, one hundred two billion, twenty-one million, two hundred twelve thousand, one hundred one".