120122002001 has 4 divisors (see below), whose sum is σ = 120887110452. Its totient is φ = 119356893552.

The previous prime is 120122001991. The next prime is 120122002003. The reversal of 120122002001 is 100200221021.

It is a happy number.

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 56844096400 + 63277905601 = 238420^2 + 251551^2 .

It is a cyclic number.

It is not a de Polignac number, because 120122002001 - 2¹⁴ = 120121985617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120122002003) 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, 382553990 + ... + 382554303.

It is an arithmetic number, because the mean of its divisors is an integer number (30221777613).

Almost surely, 2^120122002001 is an apocalyptic number.

It is an amenable number.

120122002001 is a deficient number, since it is larger than the sum of its proper divisors (765108451).

120122002001 is an equidigital number, since it uses as much as digits as its factorization.

120122002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765108450.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120122002001 its reverse (100200221021), we get a palindrome (220322223022).

The spelling of 120122002001 in words is "one hundred twenty billion, one hundred twenty-two million, two thousand, one".