21213045110000 has 50 divisors (see below), whose sum is σ = 51358903540032. Its totient is φ = 8485218040000.

The previous prime is 21213045109951. The next prime is 21213045110017. The reversal of 21213045110000 is 1154031212.

21213045110000 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1060642256 + ... + 1060662255.

Almost surely, 2^{21213045110000} is an apocalyptic number.

21213045110000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21213045110000 is an abundant number, since it is smaller than the sum of its proper divisors (30145858430032).

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

21213045110000 is an equidigital number, since it uses as much as digits as its factorization.

21213045110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2121304539 (or 2121304518 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 21213045110000 its reverse (1154031212), we get a palindrome (21214199141212).

The spelling of 21213045110000 in words is "twenty-one trillion, two hundred thirteen billion, forty-five million, one hundred ten thousand".