11231221112210 has 64 divisors (see below), whose sum is σ = 22084707196800. Its totient is φ = 4078402099200.

The previous prime is 11231221112197. The next prime is 11231221112257. The reversal of 11231221112210 is 1221112213211.

It is a super-2 number, since 2×11231221112210² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 818058626 + ... + 818072354.

It is an arithmetic number, because the mean of its divisors is an integer number (345073549950).

Almost surely, 2^{11231221112210} is an apocalyptic number.

11231221112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11231221112210 is a deficient number, since it is larger than the sum of its proper divisors (10853486084590).

11231221112210 is a wasteful number, since it uses less digits than its factorization.

11231221112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23547.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11231221112210 its reverse (1221112213211), we get a palindrome (12452333325421).

The spelling of 11231221112210 in words is "eleven trillion, two hundred thirty-one billion, two hundred twenty-one million, one hundred twelve thousand, two hundred ten".