120001102221001 has 4 divisors (see below), whose sum is σ = 120004288946452. Its totient is φ = 119997915495552.

The previous prime is 120001102220933. The next prime is 120001102221059. The reversal of 120001102221001 is 100122201100021.

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 105302466366601 + 14698635854400 = 10261699^2 + 3833880^2 .

It is a cyclic number.

It is not a de Polignac number, because 120001102221001 - 2⁷ = 120001102220873 is a prime.

It is a super-2 number, since 2×120001102221001² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120001102221071) 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, 1593306240 + ... + 1593381553.

It is an arithmetic number, because the mean of its divisors is an integer number (30001072236613).

Almost surely, 2^{120001102221001} is an apocalyptic number.

It is an amenable number.

120001102221001 is a deficient number, since it is larger than the sum of its proper divisors (3186725451).

120001102221001 is an equidigital number, since it uses as much as digits as its factorization.

120001102221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186725450.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 120001102221001 its reverse (100122201100021), we get a palindrome (220123303321022).

The spelling of 120001102221001 in words is "one hundred twenty trillion, one billion, one hundred two million, two hundred twenty-one thousand, one".