2212120000 has 140 divisors (see below), whose sum is σ = 5677463880. Its totient is φ = 853888000.

The previous prime is 2212119983. The next prime is 2212120069. The reversal of 2212120000 is 212122.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1159047 + ... + 1160953.

Almost surely, 2^2212120000 is an apocalyptic number.

2212120000 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 2212120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2838731940).

2212120000 is an abundant number, since it is smaller than the sum of its proper divisors (3465343880).

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

2212120000 is an equidigital number, since it uses as much as digits as its factorization.

2212120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968 (or 1943 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2212120000 is about 47033.1797776846. The cubic root of 2212120000 is about 1302.9754331692.

Adding to 2212120000 its reverse (212122), we get a palindrome (2212332122).

The spelling of 2212120000 in words is "two billion, two hundred twelve million, one hundred twenty thousand".