10421233220 has 48 divisors (see below), whose sum is σ = 22543920000. Its totient is φ = 4044046080.

The previous prime is 10421233219. The next prime is 10421233247. The reversal of 10421233220 is 2233212401.

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

It is a junction number, because it is equal to n+sod(n) for n = 10421233192 and 10421233201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111281 + ... + 182279.

It is an arithmetic number, because the mean of its divisors is an integer number (469665000).

Almost surely, 2^10421233220 is an apocalyptic number.

10421233220 is a gapful number since it is divisible by the number (10) 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 10421233220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11271960000).

10421233220 is an abundant number, since it is smaller than the sum of its proper divisors (12122686780).

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

10421233220 is a wasteful number, since it uses less digits than its factorization.

10421233220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71228 (or 71226 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10421233220 its reverse (2233212401), we get a palindrome (12654445621).

The spelling of 10421233220 in words is "ten billion, four hundred twenty-one million, two hundred thirty-three thousand, two hundred twenty".