211420020212 has 12 divisors (see below), whose sum is σ = 381920036736. Its totient is φ = 102300009720.

The previous prime is 211420020191. The next prime is 211420020221. The reversal of 211420020212 is 212020024112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852499958 + ... + 852500205.

It is an arithmetic number, because the mean of its divisors is an integer number (31826669728).

Almost surely, 2^211420020212 is an apocalyptic number.

It is an amenable number.

211420020212 is a deficient number, since it is larger than the sum of its proper divisors (170500016524).

211420020212 is a wasteful number, since it uses less digits than its factorization.

211420020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1705000198 (or 1705000196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 211420020212 its reverse (212020024112), we get a palindrome (423440044324).

The spelling of 211420020212 in words is "two hundred eleven billion, four hundred twenty million, twenty thousand, two hundred twelve".