120121121009 has 8 divisors (see below), whose sum is σ = 124456503360. Its totient is φ = 115798623696.

The previous prime is 120121120979. The next prime is 120121121011. The reversal of 120121121009 is 900121121021.

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 120121121009 - 2³² = 115826153713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121123009) 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, 3202277 + ... + 3239570.

It is an arithmetic number, because the mean of its divisors is an integer number (15557062920).

Almost surely, 2^120121121009 is an apocalyptic number.

It is an amenable number.

120121121009 is a deficient number, since it is larger than the sum of its proper divisors (4335382351).

120121121009 is an equidigital number, since it uses as much as digits as its factorization.

120121121009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442519.

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

The spelling of 120121121009 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred twenty-one thousand, nine".