221110231210210 has 32 divisors (see below), whose sum is σ = 406649689156800. Its totient is φ = 86539306320192.

The previous prime is 221110231210189. The next prime is 221110231210241. The reversal of 221110231210210 is 12012132011122.

It is a super-2 number, since 2×221110231210210² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107333964 + ... + 1107533623.

It is an arithmetic number, because the mean of its divisors is an integer number (12707802786150).

Almost surely, 2^{221110231210210} is an apocalyptic number.

221110231210210 is a deficient number, since it is larger than the sum of its proper divisors (185539457946590).

221110231210210 is a wasteful number, since it uses less digits than its factorization.

221110231210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214867810.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 221110231210210 its reverse (12012132011122), we get a palindrome (233122363221332).

The spelling of 221110231210210 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred thirty-one million, two hundred ten thousand, two hundred ten".