212200020000 has 240 divisors, whose sum is σ = 773400307680. Its totient is φ = 56586528000.

The previous prime is 212200019951. The next prime is 212200020061. The reversal of 212200020000 is 20002212.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 343519 + ... + 736481.

It is an arithmetic number, because the mean of its divisors is an integer number (3222501282).

Almost surely, 2^212200020000 is an apocalyptic number.

212200020000 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 212200020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (386700153840).

212200020000 is an abundant number, since it is smaller than the sum of its proper divisors (561200287680).

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

212200020000 is an equidigital number, since it uses as much as digits as its factorization.

212200020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393002 (or 392973 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 212200020000 its reverse (20002212), we get a palindrome (212220022212).

The spelling of 212200020000 in words is "two hundred twelve billion, two hundred million, twenty thousand".