212021120000 has 110 divisors (see below), whose sum is σ = 529626049788. Its totient is φ = 84808192000.

The previous prime is 212021119997. The next prime is 212021120021. The reversal of 212021120000 is 21120212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 474359 + ... + 805641.

Almost surely, 2^212021120000 is an apocalyptic number.

212021120000 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 212021120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264813024894).

212021120000 is an abundant number, since it is smaller than the sum of its proper divisors (317604929788).

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

212021120000 is an frugal number, since it uses more digits than its factorization.

212021120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331323 (or 331290 counting only the distinct ones).

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

Adding to 212021120000 its reverse (21120212), we get a palindrome (212042240212).

The spelling of 212021120000 in words is "two hundred twelve billion, twenty-one million, one hundred twenty thousand".