20210012002111 has 4 divisors (see below), whose sum is σ = 20259425234800. Its totient is φ = 20160598769424.

The previous prime is 20210012002097. The next prime is 20210012002183. The reversal of 20210012002111 is 11120021001202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20210012002111 - 2¹¹ = 20210012000063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210012002091 and 20210012002100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210012002211) 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, 24706615731 + ... + 24706616548.

It is an arithmetic number, because the mean of its divisors is an integer number (5064856308700).

Almost surely, 2^{20210012002111} is an apocalyptic number.

20210012002111 is a deficient number, since it is larger than the sum of its proper divisors (49413232689).

20210012002111 is an equidigital number, since it uses as much as digits as its factorization.

20210012002111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49413232688.

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

Adding to 20210012002111 its reverse (11120021001202), we get a palindrome (31330033003313).

The spelling of 20210012002111 in words is "twenty trillion, two hundred ten billion, twelve million, two thousand, one hundred eleven".