23221101210 has 192 divisors, whose sum is σ = 61560414720. Its totient is φ = 5585448960.

The previous prime is 23221101209. The next prime is 23221101217. The reversal of 23221101210 is 1210112232.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23221101210.

It is not an unprimeable number, because it can be changed into a prime (23221101217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55156800 + ... + 55157220.

It is an arithmetic number, because the mean of its divisors is an integer number (320627160).

Almost surely, 2^23221101210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23221101210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30780207360).

23221101210 is an abundant number, since it is smaller than the sum of its proper divisors (38339313510).

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

23221101210 is a wasteful number, since it uses less digits than its factorization.

23221101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 23221101210 its reverse (1210112232), we get a palindrome (24431213442).

The spelling of 23221101210 in words is "twenty-three billion, two hundred twenty-one million, one hundred one thousand, two hundred ten".