100121299 has 2 divisors, whose sum is σ = 100121300. Its totient is φ = 100121298.

The previous prime is 100121269. The next prime is 100121321. The reversal of 100121299 is 992121001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100121299 - 2⁵ = 100121267 is a prime.

It is not a weakly prime, because it can be changed into another prime (100121269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060649 + 50060650.

It is an arithmetic number, because the mean of its divisors is an integer number (50060650).

Almost surely, 2^100121299 is an apocalyptic number.

100121299 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121299 is an equidigital number, since it uses as much as digits as its factorization.

100121299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 100121299 is about 10006.0631119337. The cubic root of 100121299 is about 464.3464808917.

It can be divided in two parts, 10012 and 1299, that added together give a palindrome (11311).

The spelling of 100121299 in words is "one hundred million, one hundred twenty-one thousand, two hundred ninety-nine".