212101211010 has 64 divisors (see below), whose sum is σ = 548863765632. Its totient is φ = 52146318336.

The previous prime is 212101210999. The next prime is 212101211099. The reversal of 212101211010 is 10112101212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6279 + ... + 651338.

It is an arithmetic number, because the mean of its divisors is an integer number (8575996338).

Almost surely, 2^212101211010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212101211010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274431882816).

212101211010 is an abundant number, since it is smaller than the sum of its proper divisors (336762554622).

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

212101211010 is a wasteful number, since it uses less digits than its factorization.

212101211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658467.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212101211010 its reverse (10112101212), we get a palindrome (222213312222).

The spelling of 212101211010 in words is "two hundred twelve billion, one hundred one million, two hundred eleven thousand, ten".