212251322011 has 4 divisors (see below), whose sum is σ = 224736693912. Its totient is φ = 199765950112.

The previous prime is 212251321999. The next prime is 212251322021. The reversal of 212251322011 is 110223152212.

212251322011 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 212251322011 - 2²⁵ = 212217767579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212251322021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6242685925 + ... + 6242685958.

It is an arithmetic number, because the mean of its divisors is an integer number (56184173478).

Almost surely, 2^212251322011 is an apocalyptic number.

212251322011 is a deficient number, since it is larger than the sum of its proper divisors (12485371901).

212251322011 is a wasteful number, since it uses less digits than its factorization.

212251322011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12485371900.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 212251322011 its reverse (110223152212), we get a palindrome (322474474223).

The spelling of 212251322011 in words is "two hundred twelve billion, two hundred fifty-one million, three hundred twenty-two thousand, eleven".