212100212001011 has 4 divisors (see below), whose sum is σ = 224576695059912. Its totient is φ = 199623728942112.

The previous prime is 212100212000951. The next prime is 212100212001031. The reversal of 212100212001011 is 110100212001212.

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 212100212001011 - 2²⁶ = 212100144892147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212100212001031) 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, 6238241529425 + ... + 6238241529458.

It is an arithmetic number, because the mean of its divisors is an integer number (56144173764978).

Almost surely, 2^{212100212001011} is an apocalyptic number.

212100212001011 is a deficient number, since it is larger than the sum of its proper divisors (12476483058901).

212100212001011 is a wasteful number, since it uses less digits than its factorization.

212100212001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12476483058900.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 212100212001011 its reverse (110100212001212), we get a palindrome (322200424002223).

The spelling of 212100212001011 in words is "two hundred twelve trillion, one hundred billion, two hundred twelve million, one thousand, eleven".