1222523235 has 12 divisors (see below), whose sum is σ = 2119040352. Its totient is φ = 652012368.

The previous prime is 1222523231. The next prime is 1222523279. The reversal of 1222523235 is 5323252221.

1222523235 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 1222523235 - 2² = 1222523231 is a prime.

It is a super-2 number, since 2×1222523235² = 2989126120229730450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1222523199 and 1222523208.

It is not an unprimeable number, because it can be changed into a prime (1222523231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13583547 + ... + 13583636.

It is an arithmetic number, because the mean of its divisors is an integer number (176586696).

Almost surely, 2^1222523235 is an apocalyptic number.

1222523235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1222523235 is a deficient number, since it is larger than the sum of its proper divisors (896517117).

1222523235 is a wasteful number, since it uses less digits than its factorization.

1222523235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27167194 (or 27167191 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 1222523235 is about 34964.5997403088. The cubic root of 1222523235 is about 1069.2658763228.

Adding to 1222523235 its reverse (5323252221), we get a palindrome (6545775456).

The spelling of 1222523235 in words is "one billion, two hundred twenty-two million, five hundred twenty-three thousand, two hundred thirty-five".