21102022000000 has 224 divisors, whose sum is σ = 53059003648560. Its totient is φ = 8358777600000.

The previous prime is 21102021999997. The next prime is 21102022000019. The reversal of 21102022000000 is 22020112.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 205948782 + ... + 206051218.

Almost surely, 2^{21102022000000} is an apocalyptic number.

21102022000000 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 21102022000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26529501824280).

21102022000000 is an abundant number, since it is smaller than the sum of its proper divisors (31956981648560).

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

21102022000000 is an frugal number, since it uses more digits than its factorization.

21102022000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102584 (or 102547 counting only the distinct ones).

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

Adding to 21102022000000 its reverse (22020112), we get a palindrome (21102044020112).

The spelling of 21102022000000 in words is "twenty-one trillion, one hundred two billion, twenty-two million", and thus it is an aban number.