211012220000 has 120 divisors (see below), whose sum is σ = 519530147136. Its totient is φ = 84338496000.

The previous prime is 211012219969. The next prime is 211012220059. The reversal of 211012220000 is 22210112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 31336634 + ... + 31343366.

Almost surely, 2^211012220000 is an apocalyptic number.

211012220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211012220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259765073568).

211012220000 is an abundant number, since it is smaller than the sum of its proper divisors (308517927136).

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

211012220000 is an equidigital number, since it uses as much as digits as its factorization.

211012220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330 (or 8307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 211012220000 its reverse (22210112), we get a palindrome (211034430112).

The spelling of 211012220000 in words is "two hundred eleven billion, twelve million, two hundred twenty thousand".