221300213310 has 96 divisors (see below), whose sum is σ = 628235513568. Its totient is φ = 53601730560.

The previous prime is 221300213297. The next prime is 221300213311. The reversal of 221300213310 is 13312003122.

221300213310 is a `hidden beast` number, since 221 + 300 + 2 + 133 + 10 = 666.

It is a super-2 number, since 2×221300213310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300213311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1044534 + ... + 1238406.

It is an arithmetic number, because the mean of its divisors is an integer number (6544119933).

Almost surely, 2^221300213310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221300213310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314117756784).

221300213310 is an abundant number, since it is smaller than the sum of its proper divisors (406935300258).

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

221300213310 is a wasteful number, since it uses less digits than its factorization.

221300213310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195050 (or 195047 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 221300213310 its reverse (13312003122), we get a palindrome (234612216432).

The spelling of 221300213310 in words is "two hundred twenty-one billion, three hundred million, two hundred thirteen thousand, three hundred ten".