2122021210000 has 100 divisors (see below), whose sum is σ = 5152355015500. Its totient is φ = 846374976000.

The previous prime is 2122021209983. The next prime is 2122021210031. The reversal of 2122021210000 is 121202212.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 908216624016 + 1213804585984 = 953004^2 + 1101728^2 .

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3185986 + ... + 3794014.

It is an arithmetic number, because the mean of its divisors is an integer number (51523550155).

Almost surely, 2^{2122021210000} is an apocalyptic number.

2122021210000 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 2122021210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2576177507750).

2122021210000 is an abundant number, since it is smaller than the sum of its proper divisors (3030333805500).

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

2122021210000 is an equidigital number, since it uses as much as digits as its factorization.

2122021210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608406 (or 608385 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2122021210000 its reverse (121202212), we get a palindrome (2122142412212).

The spelling of 2122021210000 in words is "two trillion, one hundred twenty-two billion, twenty-one million, two hundred ten thousand".