212221002011 has 2 divisors, whose sum is σ = 212221002012. Its totient is φ = 212221002010.

The previous prime is 212221001969. The next prime is 212221002079. The reversal of 212221002011 is 110200122212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212221002011 - 2²² = 212216807707 is a prime.

It is not a weakly prime, because it can be changed into another prime (212221002311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106110501005 + 106110501006.

It is an arithmetic number, because the mean of its divisors is an integer number (106110501006).

Almost surely, 2^212221002011 is an apocalyptic number.

212221002011 is a deficient number, since it is larger than the sum of its proper divisors (1).

212221002011 is an equidigital number, since it uses as much as digits as its factorization.

212221002011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 212221002011 its reverse (110200122212), we get a palindrome (322421124223).

The spelling of 212221002011 in words is "two hundred twelve billion, two hundred twenty-one million, two thousand, eleven".