2121030330001 has 6 divisors (see below), whose sum is σ = 2331380445506. Its totient is φ = 1928209390800.

The previous prime is 2121030329963. The next prime is 2121030330007. The reversal of 2121030330001 is 1000330301212.

It can be written as a sum of positive squares in only one way, i.e., 1558312808976 + 562717521025 = 1248324^2 + 750145^2 .

It is not a de Polignac number, because 2121030330001 - 2¹⁵ = 2121030297233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121030330007) 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, 8764588020 + ... + 8764588261.

Almost surely, 2^{2121030330001} is an apocalyptic number.

It is an amenable number.

2121030330001 is a deficient number, since it is larger than the sum of its proper divisors (210350115505).

2121030330001 is a wasteful number, since it uses less digits than its factorization.

2121030330001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17529176303 (or 17529176292 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 2121030330001 its reverse (1000330301212), we get a palindrome (3121360631213).

The spelling of 2121030330001 in words is "two trillion, one hundred twenty-one billion, thirty million, three hundred thirty thousand, one".