221313030210 has 48 divisors (see below), whose sum is σ = 575506361664. Its totient is φ = 59007322656.

The previous prime is 221313030187. The next prime is 221313030247. The reversal of 221313030210 is 12030313122.

221313030210 is a `hidden beast` number, since 22 + 131 + 303 + 0 + 210 = 666.

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

It is a Curzon number.

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, 374619 + ... + 763521.

It is an arithmetic number, because the mean of its divisors is an integer number (11989715868).

Almost surely, 2^221313030210 is an apocalyptic number.

221313030210 is an abundant number, since it is smaller than the sum of its proper divisors (354193331454).

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

221313030210 is a wasteful number, since it uses less digits than its factorization.

221313030210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395239 (or 395236 counting only the distinct ones).

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

Adding to 221313030210 its reverse (12030313122), we get a palindrome (233343343332).

The spelling of 221313030210 in words is "two hundred twenty-one billion, three hundred thirteen million, thirty thousand, two hundred ten".