21220201112000 has 224 divisors, whose sum is σ = 58136738549760. Its totient is φ = 7607752320000.

The previous prime is 21220201111969. The next prime is 21220201112039. The reversal of 21220201112000 is 21110202212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4549841 + ... + 7946159.

Almost surely, 2^{21220201112000} is an apocalyptic number.

21220201112000 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 21220201112000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29068369274880).

21220201112000 is an abundant number, since it is smaller than the sum of its proper divisors (36916537437760).

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

21220201112000 is a wasteful number, since it uses less digits than its factorization.

21220201112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396428 (or 3396408 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21220201112000 its reverse (21110202212), we get a palindrome (21241311314212).

The spelling of 21220201112000 in words is "twenty-one trillion, two hundred twenty billion, two hundred one million, one hundred twelve thousand".