1223322135 has 16 divisors (see below), whose sum is σ = 2236932096. Its totient is φ = 559232928.

The previous prime is 1223322131. The next prime is 1223322161. The reversal of 1223322135 is 5312233221.

It is a happy number.

It is not a de Polignac number, because 1223322135 - 2² = 1223322131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223322131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5825239 + ... + 5825448.

It is an arithmetic number, because the mean of its divisors is an integer number (139808256).

Almost surely, 2^1223322135 is an apocalyptic number.

1223322135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1223322135 is a deficient number, since it is larger than the sum of its proper divisors (1013609961).

1223322135 is a wasteful number, since it uses less digits than its factorization.

1223322135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11650702.

The product of its digits is 2160, while the sum is 24.

The square root of 1223322135 is about 34976.0222867038. The cubic root of 1223322135 is about 1069.4987418354.

Adding to 1223322135 its reverse (5312233221), we get a palindrome (6535555356).

The spelling of 1223322135 in words is "one billion, two hundred twenty-three million, three hundred twenty-two thousand, one hundred thirty-five".