212012020221011 has 4 divisors (see below), whose sum is σ = 212012049364752. Its totient is φ = 212011991077272.

The previous prime is 212012020220971. The next prime is 212012020221031. The reversal of 212012020221011 is 110122020210212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 212012020221011 - 2²⁶ = 212011953112147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012020221031) 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, 6427685 + ... + 21571721.

It is an arithmetic number, because the mean of its divisors is an integer number (53003012341188).

Almost surely, 2^{212012020221011} is an apocalyptic number.

212012020221011 is a deficient number, since it is larger than the sum of its proper divisors (29143741).

212012020221011 is a wasteful number, since it uses less digits than its factorization.

212012020221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29143740.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212012020221011 its reverse (110122020210212), we get a palindrome (322134040431223).

The spelling of 212012020221011 in words is "two hundred twelve trillion, twelve billion, twenty million, two hundred twenty-one thousand, eleven".