211330220021200 has 60 divisors (see below), whose sum is σ = 580252404123040. Its totient is φ = 72456075434880.

The previous prime is 211330220021197. The next prime is 211330220021201. The reversal of 211330220021200 is 2120022033112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211330220021201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37737536490 + ... + 37737542089.

Almost surely, 2^{211330220021200} is an apocalyptic number.

211330220021200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211330220021200 is an abundant number, since it is smaller than the sum of its proper divisors (368922184101840).

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

211330220021200 is a wasteful number, since it uses less digits than its factorization.

211330220021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75475078604 (or 75475078593 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 211330220021200 its reverse (2120022033112), we get a palindrome (213450242054312).

The spelling of 211330220021200 in words is "two hundred eleven trillion, three hundred thirty billion, two hundred twenty million, twenty-one thousand, two hundred".