21013222220000 has 60 divisors (see below), whose sum is σ = 51695678693736. Its totient is φ = 8405288880000.

The previous prime is 21013222219999. The next prime is 21013222220033. The reversal of 21013222220000 is 2222231012.

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, 525310556 + ... + 525350555.

Almost surely, 2^{21013222220000} is an apocalyptic number.

21013222220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21013222220000 is an abundant number, since it is smaller than the sum of its proper divisors (30682456473736).

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

21013222220000 is an equidigital number, since it uses as much as digits as its factorization.

21013222220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050661141 (or 1050661118 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21013222220000 its reverse (2222231012), we get a palindrome (21015444451012).

The spelling of 21013222220000 in words is "twenty-one trillion, thirteen billion, two hundred twenty-two million, two hundred twenty thousand".