211143213210 has 64 divisors (see below), whose sum is σ = 521327705472. Its totient is φ = 54689607936.

The previous prime is 211143213181. The next prime is 211143213233. The reversal of 211143213210 is 12312341112.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489544 + ... + 813596.

It is an arithmetic number, because the mean of its divisors is an integer number (8145745398).

Almost surely, 2^211143213210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211143213210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260663852736).

211143213210 is an abundant number, since it is smaller than the sum of its proper divisors (310184492262).

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

211143213210 is a wasteful number, since it uses less digits than its factorization.

211143213210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324687.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211143213210 its reverse (12312341112), we get a palindrome (223455554322).

The spelling of 211143213210 in words is "two hundred eleven billion, one hundred forty-three million, two hundred thirteen thousand, two hundred ten".