11221121223210 has 32 divisors (see below), whose sum is σ = 27127265332032. Its totient is φ = 2970457393280.

The previous prime is 11221121223209. The next prime is 11221121223217. The reversal of 11221121223210 is 1232212112211.

11221121223210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11221121223217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365095796 + ... + 1365104015.

It is an arithmetic number, because the mean of its divisors is an integer number (847727041626).

Almost surely, 2^{11221121223210} is an apocalyptic number.

11221121223210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221121223210 is an abundant number, since it is smaller than the sum of its proper divisors (15906144108822).

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

11221121223210 is a wasteful number, since it uses less digits than its factorization.

11221121223210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730199958.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11221121223210 its reverse (1232212112211), we get a palindrome (12453333335421).

The spelling of 11221121223210 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-three thousand, two hundred ten".