21203232210000 has 600 divisors, whose sum is σ = 80163229180320. Its totient is φ = 5211817344000.

The previous prime is 21203232209987. The next prime is 21203232210029. The reversal of 21203232210000 is 1223230212.

21203232210000 is a `hidden beast` number, since 2 + 120 + 323 + 221 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (600).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 63102439 + ... + 63437561.

Almost surely, 2^{21203232210000} is an apocalyptic number.

21203232210000 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 21203232210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40081614590160).

21203232210000 is an abundant number, since it is smaller than the sum of its proper divisors (58959996970320).

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

21203232210000 is a wasteful number, since it uses less digits than its factorization.

21203232210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335213 (or 335189 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21203232210000 its reverse (1223230212), we get a palindrome (21204455440212).

The spelling of 21203232210000 in words is "twenty-one trillion, two hundred three billion, two hundred thirty-two million, two hundred ten thousand".