221300223102 has 96 divisors (see below), whose sum is σ = 553128069312. Its totient is φ = 62635410432.

The previous prime is 221300223091. The next prime is 221300223127. The reversal of 221300223102 is 201322003122.

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 47 ways as a sum of consecutive naturals, for example, 39820908 + ... + 39826464.

It is an arithmetic number, because the mean of its divisors is an integer number (5761750722).

Almost surely, 2^221300223102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221300223102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276564034656).

221300223102 is an abundant number, since it is smaller than the sum of its proper divisors (331827846210).

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

221300223102 is a wasteful number, since it uses less digits than its factorization.

221300223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8482 (or 8479 counting only the distinct ones).

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

Adding to 221300223102 its reverse (201322003122), we get a palindrome (422622226224).

The spelling of 221300223102 in words is "two hundred twenty-one billion, three hundred million, two hundred twenty-three thousand, one hundred two".