2121010200001 has 32 divisors (see below), whose sum is σ = 2785386700800. Its totient is φ = 1599421093200.

The previous prime is 2121010199989. The next prime is 2121010200007. The reversal of 2121010200001 is 1000020101212.

It is not a de Polignac number, because 2121010200001 - 2⁷ = 2121010199873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121010200007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8950051 + ... + 9183976.

It is an arithmetic number, because the mean of its divisors is an integer number (87043334400).

Almost surely, 2^{2121010200001} is an apocalyptic number.

It is an amenable number.

2121010200001 is a deficient number, since it is larger than the sum of its proper divisors (664376500799).

2121010200001 is a wasteful number, since it uses less digits than its factorization.

2121010200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18134090 (or 18134076 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 2121010200001 its reverse (1000020101212), we get a palindrome (3121030301213).

The spelling of 2121010200001 in words is "two trillion, one hundred twenty-one billion, ten million, two hundred thousand, one".