111212220283 has 2 divisors, whose sum is σ = 111212220284. Its totient is φ = 111212220282.

The previous prime is 111212220277. The next prime is 111212220323. The reversal of 111212220283 is 382022212111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111212220283 - 2²⁹ = 110675349371 is a prime.

It is not a weakly prime, because it can be changed into another prime (111212220583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55606110141 + 55606110142.

It is an arithmetic number, because the mean of its divisors is an integer number (55606110142).

Almost surely, 2^111212220283 is an apocalyptic number.

111212220283 is a deficient number, since it is larger than the sum of its proper divisors (1).

111212220283 is an equidigital number, since it uses as much as digits as its factorization.

111212220283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 111212220283 its reverse (382022212111), we get a palindrome (493234432394).

The spelling of 111212220283 in words is "one hundred eleven billion, two hundred twelve million, two hundred twenty thousand, two hundred eighty-three".