212012101011011 has 4 divisors (see below), whose sum is σ = 242299544012592. Its totient is φ = 181724658009432.

The previous prime is 212012101011001. The next prime is 212012101011079. The reversal of 212012101011011 is 110110101210212.

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 212012101011011 - 2⁶ = 212012101010947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012101011001) 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, 15143721500780 + ... + 15143721500793.

It is an arithmetic number, because the mean of its divisors is an integer number (60574886003148).

Almost surely, 2^{212012101011011} is an apocalyptic number.

212012101011011 is a deficient number, since it is larger than the sum of its proper divisors (30287443001581).

212012101011011 is an equidigital number, since it uses as much as digits as its factorization.

212012101011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30287443001580.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212012101011011 its reverse (110110101210212), we get a palindrome (322122202221223).

The spelling of 212012101011011 in words is "two hundred twelve trillion, twelve billion, one hundred one million, eleven thousand, eleven".