11220020221111 has 8 divisors (see below), whose sum is σ = 12087018009360. Its totient is φ = 10353582334272.

The previous prime is 11220020220979. The next prime is 11220020221117. The reversal of 11220020221111 is 11112202002211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220020221111 - 2³⁹ = 10670264407223 is a prime.

It is a super-4 number, since 4×11220020221111⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220020221117) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 139933726 + ... + 140013883.

It is an arithmetic number, because the mean of its divisors is an integer number (1510877251170).

Almost surely, 2^{11220020221111} is an apocalyptic number.

11220020221111 is a deficient number, since it is larger than the sum of its proper divisors (866997788249).

11220020221111 is a wasteful number, since it uses less digits than its factorization.

11220020221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279950705.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11220020221111 its reverse (11112202002211), we get a palindrome (22332222223322).

The spelling of 11220020221111 in words is "eleven trillion, two hundred twenty billion, twenty million, two hundred twenty-one thousand, one hundred eleven".