120021111109 has 8 divisors (see below), whose sum is σ = 122414768000. Its totient is φ = 117649314432.

The previous prime is 120021111097. The next prime is 120021111121. The reversal of 120021111109 is 901111120021.

It is an interprime number because it is at equal distance from previous prime (120021111097) and next prime (120021111121).

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

It is a cyclic number.

It is not a de Polignac number, because 120021111109 - 2¹³ = 120021102917 is a prime.

It is a super-2 number, since 2×120021111109² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021111709) 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 7 ways as a sum of consecutive naturals, for example, 5453964 + ... + 5475925.

It is an arithmetic number, because the mean of its divisors is an integer number (15301846000).

Almost surely, 2^120021111109 is an apocalyptic number.

It is an amenable number.

120021111109 is a deficient number, since it is larger than the sum of its proper divisors (2393656891).

120021111109 is a wasteful number, since it uses less digits than its factorization.

120021111109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10930107.

The product of its (nonzero) digits is 36, while the sum is 19.

The spelling of 120021111109 in words is "one hundred twenty billion, twenty-one million, one hundred eleven thousand, one hundred nine".