1223052111 has 6 divisors (see below), whose sum is σ = 1766630840. Its totient is φ = 815368068.

The previous prime is 1223052107. The next prime is 1223052113. The reversal of 1223052111 is 1112503221.

1223052111 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1223052111 - 2² = 1223052107 is a prime.

It is a super-3 number, since 3×1223052111³ (a number of 28 digits) contains 333 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 (1223052113) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67947331 + ... + 67947348.

Almost surely, 2^1223052111 is an apocalyptic number.

1223052111 is a deficient number, since it is larger than the sum of its proper divisors (543578729).

1223052111 is a wasteful number, since it uses less digits than its factorization.

1223052111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135894685 (or 135894682 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1223052111 is about 34972.1619434658. The cubic root of 1223052111 is about 1069.4200458619.

Adding to 1223052111 its reverse (1112503221), we get a palindrome (2335555332).

The spelling of 1223052111 in words is "one billion, two hundred twenty-three million, fifty-two thousand, one hundred eleven".