21220313332000 has 48 divisors (see below), whose sum is σ = 52138309866552. Its totient is φ = 8488125331200.

The previous prime is 21220313331991. The next prime is 21220313332013. The reversal of 21220313332000 is 23331302212.

It can be written as a sum of positive squares in 4 ways, for example, as 4014044306064 + 17206269025936 = 2003508^2 + 4148044^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2652535167 + ... + 2652543166.

Almost surely, 2^{21220313332000} is an apocalyptic number.

21220313332000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21220313332000 is an abundant number, since it is smaller than the sum of its proper divisors (30917996534552).

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

21220313332000 is an equidigital number, since it uses as much as digits as its factorization.

21220313332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305078358 (or 5305078340 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21220313332000 its reverse (23331302212), we get a palindrome (21243644634212).

The spelling of 21220313332000 in words is "twenty-one trillion, two hundred twenty billion, three hundred thirteen million, three hundred thirty-two thousand".