11221102221210 has 192 divisors, whose sum is σ = 33846466118400. Its totient is φ = 2526086255616.

The previous prime is 11221102221209. The next prime is 11221102221229. The reversal of 11221102221210 is 1212220112211.

11221102221210 is a `hidden beast` number, since 1 + 1 + 221 + 10 + 2 + 221 + 210 = 666.

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 95 ways as a sum of consecutive naturals, for example, 269658886 + ... + 269700494.

It is an arithmetic number, because the mean of its divisors is an integer number (176283677700).

Almost surely, 2^{11221102221210} is an apocalyptic number.

11221102221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11221102221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16923233059200).

11221102221210 is an abundant number, since it is smaller than the sum of its proper divisors (22625363897190).

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

11221102221210 is a wasteful number, since it uses less digits than its factorization.

11221102221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48085 (or 48082 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11221102221210 its reverse (1212220112211), we get a palindrome (12433322333421).

The spelling of 11221102221210 in words is "eleven trillion, two hundred twenty-one billion, one hundred two million, two hundred twenty-one thousand, two hundred ten".