22000000023 has 6 divisors (see below), whose sum is σ = 31777777824. Its totient is φ = 14666666676.

The previous prime is 22000000021. The next prime is 22000000031. The reversal of 22000000023 is 32000000022.

It is not a de Polignac number, because 22000000023 - 2¹ = 22000000021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 2444444447 = 22000000023 / (2 + 2 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 2 + 3).

It is a junction number, because it is equal to n+sod(n) for n = 21999999951 and 22000000014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22000000021) 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 5 ways as a sum of consecutive naturals, for example, 1222222215 + ... + 1222222232.

It is an arithmetic number, because the mean of its divisors is an integer number (5296296304).

Almost surely, 2^22000000023 is an apocalyptic number.

22000000023 is a deficient number, since it is larger than the sum of its proper divisors (9777777801).

22000000023 is a wasteful number, since it uses less digits than its factorization.

22000000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444444453 (or 2444444450 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

Adding to 22000000023 its reverse (32000000022), we get a palindrome (54000000045).

Subtracting 22000000023 from its reverse (32000000022), we obtain a palindrome (9999999999).

The spelling of 22000000023 in words is "twenty-two billion, twenty-three", and thus it is an aban number and an uban number.