21213114010000 has 400 divisors, whose sum is σ = 58070815640640. Its totient is φ = 7433637120000.

The previous prime is 21213114009949. The next prime is 21213114010001. The reversal of 21213114010000 is 1041131212.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (21213114010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1744923922 + ... + 1744936078.

Almost surely, 2^{21213114010000} is an apocalyptic number.

21213114010000 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 21213114010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29035407820320).

21213114010000 is an abundant number, since it is smaller than the sum of its proper divisors (36857701630640).

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

21213114010000 is a wasteful number, since it uses less digits than its factorization.

21213114010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12772 (or 12751 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21213114010000 its reverse (1041131212), we get a palindrome (21214155141212).

The spelling of 21213114010000 in words is "twenty-one trillion, two hundred thirteen billion, one hundred fourteen million, ten thousand".