212112120012011 has 4 divisors (see below), whose sum is σ = 212139521146224. Its totient is φ = 212084718877800.

The previous prime is 212112120012007. The next prime is 212112120012029. The reversal of 212112120012011 is 110210021211212.

212112120012011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212112120012011 - 2² = 212112120012007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212112120012061) 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, 13700555495 + ... + 13700570976.

It is an arithmetic number, because the mean of its divisors is an integer number (53034880286556).

Almost surely, 2^{212112120012011} is an apocalyptic number.

212112120012011 is a deficient number, since it is larger than the sum of its proper divisors (27401134213).

212112120012011 is an equidigital number, since it uses as much as digits as its factorization.

212112120012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27401134212.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212112120012011 its reverse (110210021211212), we get a palindrome (322322141223223).

The spelling of 212112120012011 in words is "two hundred twelve trillion, one hundred twelve billion, one hundred twenty million, twelve thousand, eleven".