1223212023 has 40 divisors (see below), whose sum is σ = 1998184320. Its totient is φ = 739555920.

The previous prime is 1223212019. The next prime is 1223212027. The reversal of 1223212023 is 3202123221.

It is an interprime number because it is at equal distance from previous prime (1223212019) and next prime (1223212027).

It is not a de Polignac number, because 1223212023 - 2² = 1223212019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223211987 and 1223212005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223212027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 432508 + ... + 435326.

It is an arithmetic number, because the mean of its divisors is an integer number (49954608).

Almost surely, 2^1223212023 is an apocalyptic number.

1223212023 is a deficient number, since it is larger than the sum of its proper divisors (774972297).

1223212023 is a wasteful number, since it uses less digits than its factorization.

1223212023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3329 (or 3320 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1223212023 is about 34974.4481443239. The cubic root of 1223212023 is about 1069.4666521196.

Adding to 1223212023 its reverse (3202123221), we get a palindrome (4425335244).

The spelling of 1223212023 in words is "one billion, two hundred twenty-three million, two hundred twelve thousand, twenty-three".