120121122001 has 4 divisors (see below), whose sum is σ = 127187070372. Its totient is φ = 113055173632.

The previous prime is 120121121999. The next prime is 120121122013. The reversal of 120121122001 is 100221121021.

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 60553397776 + 59567724225 = 246076^2 + 244065^2 .

It is a cyclic number.

It is not a de Polignac number, because 120121122001 - 2¹ = 120121121999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120121122031) 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, 3532974160 + ... + 3532974193.

It is an arithmetic number, because the mean of its divisors is an integer number (31796767593).

Almost surely, 2^120121122001 is an apocalyptic number.

It is an amenable number.

120121122001 is a deficient number, since it is larger than the sum of its proper divisors (7065948371).

120121122001 is an equidigital number, since it uses as much as digits as its factorization.

120121122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7065948370.

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

Adding to 120121122001 its reverse (100221121021), we get a palindrome (220342243022).

The spelling of 120121122001 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one".