120121145 has 8 divisors (see below), whose sum is σ = 147497856. Its totient is φ = 93861936.

The previous prime is 120121123. The next prime is 120121163. The reversal of 120121145 is 541121021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120121145 is a prime.

It is a super-2 number, since 2×120121145² = 28858178952222050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279137 + ... + 279566.

It is an arithmetic number, because the mean of its divisors is an integer number (18437232).

Almost surely, 2^120121145 is an apocalyptic number.

It is an amenable number.

120121145 is a deficient number, since it is larger than the sum of its proper divisors (27376711).

120121145 is an equidigital number, since it uses as much as digits as its factorization.

120121145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558751.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 120121145 is about 10959.9792426811. The cubic root of 120121145 is about 493.4083419650.

Adding to 120121145 its reverse (541121021), we get a palindrome (661242166).

The spelling of 120121145 in words is "one hundred twenty million, one hundred twenty-one thousand, one hundred forty-five".