120101022101009 has 4 divisors (see below), whose sum is σ = 120101105927220. Its totient is φ = 120100938274800.

The previous prime is 120101022100999. The next prime is 120101022101017. The reversal of 120101022101009 is 900101220101021.

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 3414512665600 + 116686509435409 = 1847840^2 + 10802153^2 .

It is a cyclic number.

It is not a de Polignac number, because 120101022101009 - 2⁴⁴ = 102508836056593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120101022101509) 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, 39725954 + ... + 42642155.

It is an arithmetic number, because the mean of its divisors is an integer number (30025276481805).

Almost surely, 2^{120101022101009} is an apocalyptic number.

It is an amenable number.

120101022101009 is a deficient number, since it is larger than the sum of its proper divisors (83826211).

120101022101009 is an equidigital number, since it uses as much as digits as its factorization.

120101022101009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83826210.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 120101022101009 in words is "one hundred twenty trillion, one hundred one billion, twenty-two million, one hundred one thousand, nine".