11222120221111 has 8 divisors (see below), whose sum is σ = 11301484544000. Its totient is φ = 11142822288600.

The previous prime is 11222120221097. The next prime is 11222120221127. The reversal of 11222120221111 is 11112202122211.

It is a happy number.

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 11222120221111 - 2⁹ = 11222120220599 is a prime.

It is a super-4 number, since 4×11222120221111⁴ (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 (11222120221141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16258311 + ... + 16934488.

It is an arithmetic number, because the mean of its divisors is an integer number (1412685568000).

Almost surely, 2^{11222120221111} is an apocalyptic number.

11222120221111 is a deficient number, since it is larger than the sum of its proper divisors (79364322889).

11222120221111 is a wasteful number, since it uses less digits than its factorization.

11222120221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33195189.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11222120221111 its reverse (11112202122211), we get a palindrome (22334322343322).

The spelling of 11222120221111 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty million, two hundred twenty-one thousand, one hundred eleven".