20212010020111 has 32 divisors (see below), whose sum is σ = 24962883158528. Its totient is φ = 15936316513920.

The previous prime is 20212010020093. The next prime is 20212010020171. The reversal of 20212010020111 is 11102001021202.

It is a cyclic number.

It is not a de Polignac number, because 20212010020111 - 2⁹ = 20212010019599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20212010020091 and 20212010020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212010020171) 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, 66204265 + ... + 66508861.

It is an arithmetic number, because the mean of its divisors is an integer number (780090098704).

Almost surely, 2^{20212010020111} is an apocalyptic number.

20212010020111 is a deficient number, since it is larger than the sum of its proper divisors (4750873138417).

20212010020111 is a wasteful number, since it uses less digits than its factorization.

20212010020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307151.

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

Adding to 20212010020111 its reverse (11102001021202), we get a palindrome (31314011041313).

The spelling of 20212010020111 in words is "twenty trillion, two hundred twelve billion, ten million, twenty thousand, one hundred eleven".