212100202020111 has 32 divisors (see below), whose sum is σ = 300213291840000. Its totient is φ = 132967194530688.

The previous prime is 212100202020079. The next prime is 212100202020173. The reversal of 212100202020111 is 111020202001212.

It is not a de Polignac number, because 212100202020111 - 2⁵ = 212100202020079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212100202020611) 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, 79920931 + ... + 82532148.

It is an arithmetic number, because the mean of its divisors is an integer number (9381665370000).

Almost surely, 2^{212100202020111} is an apocalyptic number.

212100202020111 is a deficient number, since it is larger than the sum of its proper divisors (88113089819889).

212100202020111 is a wasteful number, since it uses less digits than its factorization.

212100202020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162453503.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212100202020111 its reverse (111020202001212), we get a palindrome (323120404021323).

The spelling of 212100202020111 in words is "two hundred twelve trillion, one hundred billion, two hundred two million, twenty thousand, one hundred eleven".