11221221231030 has 32 divisors (see below), whose sum is σ = 26943947503200. Its totient is φ = 2990879378432.

The previous prime is 11221221230993. The next prime is 11221221231043. The reversal of 11221221231030 is 3013212212211.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11221221230988 and 11221221231006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90329595 + ... + 90453734.

It is an arithmetic number, because the mean of its divisors is an integer number (841998359475).

Almost surely, 2^{11221221231030} is an apocalyptic number.

11221221231030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221221231030 is an abundant number, since it is smaller than the sum of its proper divisors (15722726272170).

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

11221221231030 is a wasteful number, since it uses less digits than its factorization.

11221221231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180785408.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11221221231030 its reverse (3013212212211), we get a palindrome (14234433443241).

The spelling of 11221221231030 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred thirty-one thousand, thirty".