2121064001 has 16 divisors (see below), whose sum is σ = 2466925440. Its totient is φ = 1785991680.

The previous prime is 2121063953. The next prime is 2121064009. The reversal of 2121064001 is 1004601212.

It is a cyclic number.

It is not a de Polignac number, because 2121064001 - 2⁶ = 2121063937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121064009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394010 + ... + 399356.

It is an arithmetic number, because the mean of its divisors is an integer number (154182840).

Almost surely, 2^2121064001 is an apocalyptic number.

It is an amenable number.

2121064001 is a deficient number, since it is larger than the sum of its proper divisors (345861439).

2121064001 is an equidigital number, since it uses as much as digits as its factorization.

2121064001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2121064001 is about 46055.0105960253. The cubic root of 2121064001 is about 1284.8465351911.

Adding to 2121064001 its reverse (1004601212), we get a palindrome (3125665213).

The spelling of 2121064001 in words is "two billion, one hundred twenty-one million, sixty-four thousand, one".