225112027991 has 2 divisors, whose sum is σ = 225112027992. Its totient is φ = 225112027990.

The previous prime is 225112027957. The next prime is 225112028087. The reversal of 225112027991 is 199720211522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225112027991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225112027901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112556013995 + 112556013996.

It is an arithmetic number, because the mean of its divisors is an integer number (112556013996).

Almost surely, 2^225112027991 is an apocalyptic number.

225112027991 is a deficient number, since it is larger than the sum of its proper divisors (1).

225112027991 is an equidigital number, since it uses as much as digits as its factorization.

225112027991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 41.

It can be divided in two parts, 22511 and 2027991, that added together give a palindrome (2050502).

The spelling of 225112027991 in words is "two hundred twenty-five billion, one hundred twelve million, twenty-seven thousand, nine hundred ninety-one".