112121100251 has 2 divisors, whose sum is σ = 112121100252. Its totient is φ = 112121100250.

The previous prime is 112121100209. The next prime is 112121100271. The reversal of 112121100251 is 152001121211.

It is a strong prime.

It is an emirp because it is prime and its reverse (152001121211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112121100251 - 2¹⁸ = 112120838107 is a prime.

It is a super-2 number, since 2×112121100251² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112121100271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060550125 + 56060550126.

It is an arithmetic number, because the mean of its divisors is an integer number (56060550126).

Almost surely, 2^112121100251 is an apocalyptic number.

112121100251 is a deficient number, since it is larger than the sum of its proper divisors (1).

112121100251 is an equidigital number, since it uses as much as digits as its factorization.

112121100251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 112121100251 its reverse (152001121211), we get a palindrome (264122221462).

The spelling of 112121100251 in words is "one hundred twelve billion, one hundred twenty-one million, one hundred thousand, two hundred fifty-one".