221212000211 has 2 divisors, whose sum is σ = 221212000212. Its totient is φ = 221212000210.

The previous prime is 221212000181. The next prime is 221212000249. The reversal of 221212000211 is 112000212122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221212000211 - 2¹⁴ = 221211983827 is a prime.

It is a super-3 number, since 3×221212000211³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (221212000271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110606000105 + 110606000106.

It is an arithmetic number, because the mean of its divisors is an integer number (110606000106).

Almost surely, 2^221212000211 is an apocalyptic number.

221212000211 is a deficient number, since it is larger than the sum of its proper divisors (1).

221212000211 is an equidigital number, since it uses as much as digits as its factorization.

221212000211 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 221212000211 its reverse (112000212122), we get a palindrome (333212212333).

The spelling of 221212000211 in words is "two hundred twenty-one billion, two hundred twelve million, two hundred eleven", and thus it is an aban number.