1222202423 has 6 divisors (see below), whose sum is σ = 1323450144. Its totient is φ = 1128186696.

The previous prime is 1222202383. The next prime is 1222202431. The reversal of 1222202423 is 3242022221.

It is not a de Polignac number, because 1222202423 - 2²⁰ = 1221153847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222202395 and 1222202404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222202483) 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, 3615815 + ... + 3616152.

It is an arithmetic number, because the mean of its divisors is an integer number (220575024).

Almost surely, 2^1222202423 is an apocalyptic number.

1222202423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1222202423 is a deficient number, since it is larger than the sum of its proper divisors (101247721).

1222202423 is an equidigital number, since it uses as much as digits as its factorization.

1222202423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7231993 (or 7231980 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1222202423 is about 34960.0117705930. The cubic root of 1222202423 is about 1069.1723366324.

Adding to 1222202423 its reverse (3242022221), we get a palindrome (4464224644).

The spelling of 1222202423 in words is "one billion, two hundred twenty-two million, two hundred two thousand, four hundred twenty-three".