1122010111 has 4 divisors (see below), whose sum is σ = 1133119224. Its totient is φ = 1110901000.

The previous prime is 1122010103. The next prime is 1122010133. The reversal of 1122010111 is 1110102211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1110102211 = 101 ⋅10991111.

It is a cyclic number.

It is not a de Polignac number, because 1122010111 - 2³ = 1122010103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122110111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5554405 + ... + 5554606.

It is an arithmetic number, because the mean of its divisors is an integer number (283279806).

Almost surely, 2^1122010111 is an apocalyptic number.

1122010111 is a deficient number, since it is larger than the sum of its proper divisors (11109113).

1122010111 is a wasteful number, since it uses less digits than its factorization.

1122010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109112.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1122010111 is about 33496.4193758079. The cubic root of 1122010111 is about 1039.1197281994.

Adding to 1122010111 its reverse (1110102211), we get a palindrome (2232112322).

The spelling of 1122010111 in words is "one billion, one hundred twenty-two million, ten thousand, one hundred eleven".