1101120221111 has 2 divisors, whose sum is σ = 1101120221112. Its totient is φ = 1101120221110.

The previous prime is 1101120221099. The next prime is 1101120221143. The reversal of 1101120221111 is 1111220211011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101120221111 - 2¹⁰ = 1101120220087 is a prime.

It is a super-4 number, since 4×1101120221111⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101120281111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550560110555 + 550560110556.

It is an arithmetic number, because the mean of its divisors is an integer number (550560110556).

Almost surely, 2^{1101120221111} is an apocalyptic number.

1101120221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101120221111 is an equidigital number, since it uses as much as digits as its factorization.

1101120221111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1101120221111 its reverse (1111220211011), we get a palindrome (2212340432122).

It can be divided in two parts, 1101120 and 221111, that added together give a palindrome (1322231).

The spelling of 1101120221111 in words is "one trillion, one hundred one billion, one hundred twenty million, two hundred twenty-one thousand, one hundred eleven".