2212121102000 has 320 divisors, whose sum is σ = 5733782121600. Its totient is φ = 823942246400.

The previous prime is 2212121101973. The next prime is 2212121102003. The reversal of 2212121102000 is 2011212122.

It is not an unprimeable number, because it can be changed into a prime (2212121102003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181359902 + ... + 181372098.

It is an arithmetic number, because the mean of its divisors is an integer number (17918069130).

Almost surely, 2^{2212121102000} is an apocalyptic number.

2212121102000 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 2212121102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2866891060800).

2212121102000 is an abundant number, since it is smaller than the sum of its proper divisors (3521661019600).

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

2212121102000 is a wasteful number, since it uses less digits than its factorization.

2212121102000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12361 (or 12345 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2212121102000 its reverse (2011212122), we get a palindrome (2214132314122).

The spelling of 2212121102000 in words is "two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred two thousand".