2212121030000 has 200 divisors, whose sum is σ = 6123268701792. Its totient is φ = 758145024000.

The previous prime is 2212121029891. The next prime is 2212121030003. The reversal of 2212121030000 is 301212122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212121030003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 253185632 + ... + 253194368.

Almost surely, 2^{2212121030000} is an apocalyptic number.

2212121030000 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 2212121030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3061634350896).

2212121030000 is an abundant number, since it is smaller than the sum of its proper divisors (3911147671792).

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

2212121030000 is an equidigital number, since it uses as much as digits as its factorization.

2212121030000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12389 (or 12368 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2212121030000 its reverse (301212122), we get a palindrome (2212422242122).

The spelling of 2212121030000 in words is "two trillion, two hundred twelve billion, one hundred twenty-one million, thirty thousand".