21233210010 has 128 divisors (see below), whose sum is σ = 52769193984. Its totient is φ = 5465698560.

The previous prime is 21233210003. The next prime is 21233210027. The reversal of 21233210010 is 1001233212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23937787 + ... + 23938673.

It is an arithmetic number, because the mean of its divisors is an integer number (412259328).

Almost surely, 2^21233210010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21233210010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26384596992).

21233210010 is an abundant number, since it is smaller than the sum of its proper divisors (31535983974).

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

21233210010 is a wasteful number, since it uses less digits than its factorization.

21233210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21233210010 its reverse (1001233212), we get a palindrome (22234443222).

The spelling of 21233210010 in words is "twenty-one billion, two hundred thirty-three million, two hundred ten thousand, ten".