2021210012101 has 32 divisors (see below), whose sum is σ = 2467515801600. Its totient is φ = 1618226043840.

The previous prime is 2021210012057. The next prime is 2021210012111. The reversal of 2021210012101 is 1012100121202.

It is not a de Polignac number, because 2021210012101 - 2²⁹ = 2020673141189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210012111) 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, 19349230 + ... + 19453408.

It is an arithmetic number, because the mean of its divisors is an integer number (77109868800).

Almost surely, 2^{2021210012101} is an apocalyptic number.

It is an amenable number.

2021210012101 is a deficient number, since it is larger than the sum of its proper divisors (446305789499).

2021210012101 is a wasteful number, since it uses less digits than its factorization.

2021210012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107329.

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

Adding to 2021210012101 its reverse (1012100121202), we get a palindrome (3033310133303).

The spelling of 2021210012101 in words is "two trillion, twenty-one billion, two hundred ten million, twelve thousand, one hundred one".