21011302222000 has 80 divisors (see below), whose sum is σ = 51099002034912. Its totient is φ = 8355939705600.

The previous prime is 21011302221997. The next prime is 21011302222007. The reversal of 21011302222000 is 22220311012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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 (21011302222007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30017154 + ... + 30709153.

Almost surely, 2^{21011302222000} is an apocalyptic number.

21011302222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21011302222000 is an abundant number, since it is smaller than the sum of its proper divisors (30087699812912).

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

21011302222000 is a wasteful number, since it uses less digits than its factorization.

21011302222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60726503 (or 60726487 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21011302222000 its reverse (22220311012), we get a palindrome (21033522533012).

The spelling of 21011302222000 in words is "twenty-one trillion, eleven billion, three hundred two million, two hundred twenty-two thousand".