212021001100111 has 32 divisors (see below), whose sum is σ = 262877719200768. Its totient is φ = 167059894383360.

The previous prime is 212021001100109. The next prime is 212021001100121. The reversal of 212021001100111 is 111001100120212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212021001100111 - 2¹ = 212021001100109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212021001100091 and 212021001100100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021001100121) 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, 239255700 + ... + 240140233.

It is an arithmetic number, because the mean of its divisors is an integer number (8214928725024).

Almost surely, 2^{212021001100111} is an apocalyptic number.

212021001100111 is a deficient number, since it is larger than the sum of its proper divisors (50856718100657).

212021001100111 is a wasteful number, since it uses less digits than its factorization.

212021001100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479396071.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 212021001100111 its reverse (111001100120212), we get a palindrome (323022101220323).

The spelling of 212021001100111 in words is "two hundred twelve trillion, twenty-one billion, one million, one hundred thousand, one hundred eleven".