21010200022000 has 160 divisors (see below), whose sum is σ = 58215858839424. Its totient is φ = 7184183040000.

The previous prime is 21010200021973. The next prime is 21010200022033. The reversal of 21010200022000 is 22000201012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3210300 + ... + 7233700.

Almost surely, 2^{21010200022000} is an apocalyptic number.

21010200022000 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 21010200022000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29107929419712).

21010200022000 is an abundant number, since it is smaller than the sum of its proper divisors (37205658817424).

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

21010200022000 is a wasteful number, since it uses less digits than its factorization.

21010200022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023804 (or 4023788 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 21010200022000 its reverse (22000201012), we get a palindrome (21032200223012).

The spelling of 21010200022000 in words is "twenty-one trillion, ten billion, two hundred million, twenty-two thousand".