120101201001 has 6 divisors (see below), whose sum is σ = 173479512570. Its totient is φ = 80067467328.

The previous prime is 120101200987. The next prime is 120101201039. The reversal of 120101201001 is 100102101021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 106106547600 + 13994653401 = 325740^2 + 118299^2 .

It is not a de Polignac number, because 120101201001 - 2⁵ = 120101200969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 13344577889 = 120101201001 / (1 + 2 + 0 + 1 + 0 + 1 + 2 + 0 + 1 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (120101201081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6672288936 + ... + 6672288953.

It is an arithmetic number, because the mean of its divisors is an integer number (28913252095).

Almost surely, 2^120101201001 is an apocalyptic number.

It is an amenable number.

120101201001 is a deficient number, since it is larger than the sum of its proper divisors (53378311569).

120101201001 is a wasteful number, since it uses less digits than its factorization.

120101201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13344577895 (or 13344577892 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 120101201001 its reverse (100102101021), we get a palindrome (220203302022).

The spelling of 120101201001 in words is "one hundred twenty billion, one hundred one million, two hundred one thousand, one".