211122221000012 has 24 divisors (see below), whose sum is σ = 422267427321600. Its totient is φ = 90476026431120.

The previous prime is 211122220999897. The next prime is 211122221000051. The reversal of 211122221000012 is 210000122221112.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204702512 + ... + 205731287.

It is an arithmetic number, because the mean of its divisors is an integer number (17594476138400).

Almost surely, 2^{211122221000012} is an apocalyptic number.

It is an amenable number.

211122221000012 is an abundant number, since it is smaller than the sum of its proper divisors (211145206321588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211122221000012 is a wasteful number, since it uses less digits than its factorization.

211122221000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410452181 (or 410452179 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211122221000012 its reverse (210000122221112), we get a palindrome (421122343221124).

The spelling of 211122221000012 in words is "two hundred eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, twelve", and thus it is an aban number.