22000212120210 has 128 divisors (see below), whose sum is σ = 54439937568000. Its totient is φ = 5687347986432.

The previous prime is 22000212120203. The next prime is 22000212120221. The reversal of 22000212120210 is 1202121200022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 22000212120210.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1153706556 + ... + 1153725624.

It is an arithmetic number, because the mean of its divisors is an integer number (425312012250).

Almost surely, 2^{22000212120210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22000212120210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27219968784000).

22000212120210 is an abundant number, since it is smaller than the sum of its proper divisors (32439725447790).

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

22000212120210 is a wasteful number, since it uses less digits than its factorization.

22000212120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28140.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22000212120210 its reverse (1202121200022), we get a palindrome (23202333320232).

The spelling of 22000212120210 in words is "twenty-two trillion, two hundred twelve million, one hundred twenty thousand, two hundred ten".