23011232222 has 16 divisors (see below), whose sum is σ = 37657224432. Its totient is φ = 10458961920.

The previous prime is 23011232221. The next prime is 23011232227. The reversal of 23011232222 is 22223211032.

It is a happy number.

It is a super-2 number, since 2×23011232222² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23011232194 and 23011232203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011232221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473438 + ... + 519774.

It is an arithmetic number, because the mean of its divisors is an integer number (2353576527).

Almost surely, 2^23011232222 is an apocalyptic number.

23011232222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23011232222 is a deficient number, since it is larger than the sum of its proper divisors (14645992210).

23011232222 is a wasteful number, since it uses less digits than its factorization.

23011232222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68923.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23011232222 its reverse (22223211032), we get a palindrome (45234443254).

The spelling of 23011232222 in words is "twenty-three billion, eleven million, two hundred thirty-two thousand, two hundred twenty-two".