211205206000 has 80 divisors (see below), whose sum is σ = 517690356768. Its totient is φ = 83324736000.

The previous prime is 211205205997. The next prime is 211205206039. The reversal of 211205206000 is 602502112.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

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, 577306 + ... + 869305.

Almost surely, 2^211205206000 is an apocalyptic number.

211205206000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211205206000 is an abundant number, since it is smaller than the sum of its proper divisors (306485150768).

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

211205206000 is a wasteful number, since it uses less digits than its factorization.

211205206000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446707 (or 1446691 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 211205206000 its reverse (602502112), we get a palindrome (211807708112).

The spelling of 211205206000 in words is "two hundred eleven billion, two hundred five million, two hundred six thousand".