212101022012311 has 4 divisors (see below), whose sum is σ = 212101172581072. Its totient is φ = 212100871443552.

The previous prime is 212101022012303. The next prime is 212101022012323. The reversal of 212101022012311 is 113210220101212.

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 212101022012311 - 2³ = 212101022012303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101022012351) 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, 73151235 + ... + 75995428.

It is an arithmetic number, because the mean of its divisors is an integer number (53025293145268).

Almost surely, 2^{212101022012311} is an apocalyptic number.

212101022012311 is a deficient number, since it is larger than the sum of its proper divisors (150568761).

212101022012311 is a wasteful number, since it uses less digits than its factorization.

212101022012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150568760.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 212101022012311 its reverse (113210220101212), we get a palindrome (325311242113523).

The spelling of 212101022012311 in words is "two hundred twelve trillion, one hundred one billion, twenty-two million, twelve thousand, three hundred eleven".