11333220221111 has 2 divisors, whose sum is σ = 11333220221112. Its totient is φ = 11333220221110.

The previous prime is 11333220221101. The next prime is 11333220221159. The reversal of 11333220221111 is 11112202233311.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11112202233311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11333220221111 - 2³⁰ = 11332146479287 is a prime.

It is a super-4 number, since 4×11333220221111⁴ (a number of 53 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11333220221101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5666610110555 + 5666610110556.

It is an arithmetic number, because the mean of its divisors is an integer number (5666610110556).

Almost surely, 2^{11333220221111} is an apocalyptic number.

11333220221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

11333220221111 is an equidigital number, since it uses as much as digits as its factorization.

11333220221111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 11333220221111 its reverse (11112202233311), we get a palindrome (22445422454422).

The spelling of 11333220221111 in words is "eleven trillion, three hundred thirty-three billion, two hundred twenty million, two hundred twenty-one thousand, one hundred eleven".