120111221001 has 8 divisors (see below), whose sum is σ = 160149977344. Its totient is φ = 80073306000.

The previous prime is 120111220981. The next prime is 120111221039. The reversal of 120111221001 is 100122111021.

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

It is not a de Polignac number, because 120111221001 - 2¹⁷ = 120111089929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120111221051) 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, 298920 + ... + 574086.

It is an arithmetic number, because the mean of its divisors is an integer number (20018747168).

Almost surely, 2^120111221001 is an apocalyptic number.

It is an amenable number.

120111221001 is a deficient number, since it is larger than the sum of its proper divisors (40038756343).

120111221001 is a wasteful number, since it uses less digits than its factorization.

120111221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420671.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 120111221001 its reverse (100122111021), we get a palindrome (220233332022).

The spelling of 120111221001 in words is "one hundred twenty billion, one hundred eleven million, two hundred twenty-one thousand, one".