221302113210 has 48 divisors (see below), whose sum is σ = 586241837064. Its totient is φ = 57900425856.

The previous prime is 221302113209. The next prime is 221302113271. The reversal of 221302113210 is 12311203122.

221302113210 is a `hidden beast` number, since 2 + 2 + 130 + 211 + 321 + 0 = 666.

221302113210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 221199961761 + 102151449 = 470319^2 + 10107^2 .

It is a super-2 number, since 2×221302113210² (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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23192517 + ... + 23202056.

Almost surely, 2^221302113210 is an apocalyptic number.

221302113210 is an abundant number, since it is smaller than the sum of its proper divisors (364939723854).

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

221302113210 is a wasteful number, since it uses less digits than its factorization.

221302113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46394639 (or 46394636 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 221302113210 its reverse (12311203122), we get a palindrome (233613316332).

The spelling of 221302113210 in words is "two hundred twenty-one billion, three hundred two million, one hundred thirteen thousand, two hundred ten".