120201001001 has 4 divisors (see below), whose sum is σ = 120220670292. Its totient is φ = 120181331712.

The previous prime is 120201000979. The next prime is 120201001027. The reversal of 120201001001 is 100100102021.

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 32096514025 + 88104486976 = 179155^2 + 296824^2 .

It is a cyclic number.

It is not a de Polignac number, because 120201001001 - 2³⁰ = 119127259177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120201001001.

It is not an unprimeable number, because it can be changed into a prime (120201051001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9825476 + ... + 9837701.

It is an arithmetic number, because the mean of its divisors is an integer number (30055167573).

Almost surely, 2^120201001001 is an apocalyptic number.

It is an amenable number.

120201001001 is a deficient number, since it is larger than the sum of its proper divisors (19669291).

120201001001 is an equidigital number, since it uses as much as digits as its factorization.

120201001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19669290.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 120201001001 its reverse (100100102021), we get a palindrome (220301103022).

The spelling of 120201001001 in words is "one hundred twenty billion, two hundred one million, one thousand, one".