23223221999 has 2 divisors, whose sum is σ = 23223222000. Its totient is φ = 23223221998.

The previous prime is 23223221981. The next prime is 23223222019. The reversal of 23223221999 is 99912232232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23223221999 - 2¹² = 23223217903 is a prime.

It is a super-4 number, since 4×23223221999⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23523221999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611610999 + 11611611000.

It is an arithmetic number, because the mean of its divisors is an integer number (11611611000).

Almost surely, 2^23223221999 is an apocalyptic number.

23223221999 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223221999 is an equidigital number, since it uses as much as digits as its factorization.

23223221999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The spelling of 23223221999 in words is "twenty-three billion, two hundred twenty-three million, two hundred twenty-one thousand, nine hundred ninety-nine".