211021220012 has 48 divisors (see below), whose sum is σ = 377515582080. Its totient is φ = 103185902592.

The previous prime is 211021219991. The next prime is 211021220023. The reversal of 211021220012 is 210022120112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41561618 + ... + 41566694.

It is an arithmetic number, because the mean of its divisors is an integer number (7864907960).

Almost surely, 2^211021220012 is an apocalyptic number.

It is an amenable number.

211021220012 is a deficient number, since it is larger than the sum of its proper divisors (166494362068).

211021220012 is a wasteful number, since it uses less digits than its factorization.

211021220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6330 (or 6328 counting only the distinct ones).

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

Adding to 211021220012 its reverse (210022120112), we get a palindrome (421043340124).

The spelling of 211021220012 in words is "two hundred eleven billion, twenty-one million, two hundred twenty thousand, twelve".