21022232204000 has 96 divisors (see below), whose sum is σ = 51662448111456. Its totient is φ = 8407130803200.

The previous prime is 21022232203909. The next prime is 21022232204009. The reversal of 21022232204000 is 40223222012.

It is a super-3 number, since 3×21022232204000³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022232204009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18623747 + ... + 19720253.

It is an arithmetic number, because the mean of its divisors is an integer number (538150501161).

Almost surely, 2^{21022232204000} is an apocalyptic number.

21022232204000 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 21022232204000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25831224055728).

21022232204000 is an abundant number, since it is smaller than the sum of its proper divisors (30640215907456).

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

21022232204000 is a wasteful number, since it uses less digits than its factorization.

21022232204000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101325 (or 1101307 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 21022232204000 its reverse (40223222012), we get a palindrome (21062455426012).

The spelling of 21022232204000 in words is "twenty-one trillion, twenty-two billion, two hundred thirty-two million, two hundred four thousand".