11221221021022 has 96 divisors (see below), whose sum is σ = 18655804293120. Its totient is φ = 5057534576640.

The previous prime is 11221221021011. The next prime is 11221221021077. The reversal of 11221221021022 is 22012012212211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 242487747 + ... + 242534017.

It is an arithmetic number, because the mean of its divisors is an integer number (194331294720).

Almost surely, 2^{11221221021022} is an apocalyptic number.

11221221021022 is a deficient number, since it is larger than the sum of its proper divisors (7434583272098).

11221221021022 is a wasteful number, since it uses less digits than its factorization.

11221221021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46546 (or 46529 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11221221021022 its reverse (22012012212211), we get a palindrome (33233233233233).

The spelling of 11221221021022 in words is "eleven trillion, two hundred twenty-one billion, two hundred twenty-one million, twenty-one thousand, twenty-two".