22023412402 has 4 divisors (see below), whose sum is σ = 33035118606. Its totient is φ = 11011706200.

The previous prime is 22023412393. The next prime is 22023412403. The reversal of 22023412402 is 20421432022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20421432022 = 2 ⋅10210716011.

It can be written as a sum of positive squares in only one way, i.e., 14852540641 + 7170871761 = 121871^2 + 84681^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22023412403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505853099 + ... + 5505853102.

Almost surely, 2^22023412402 is an apocalyptic number.

22023412402 is a deficient number, since it is larger than the sum of its proper divisors (11011706204).

22023412402 is a wasteful number, since it uses less digits than its factorization.

22023412402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011706203.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 22023412402 its reverse (20421432022), we get a palindrome (42444844424).

The spelling of 22023412402 in words is "twenty-two billion, twenty-three million, four hundred twelve thousand, four hundred two".