12011121098 has 8 divisors (see below), whose sum is σ = 18019596420. Its totient is φ = 6004588960.

The previous prime is 12011121097. The next prime is 12011121103. The reversal of 12011121098 is 89012111021.

It can be written as a sum of positive squares in 2 ways, for example, as 10503585169 + 1507535929 = 102487^2 + 38827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12011121097) 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 in 3 ways as a sum of consecutive naturals, for example, 470243 + ... + 495126.

Almost surely, 2^12011121098 is an apocalyptic number.

12011121098 is a deficient number, since it is larger than the sum of its proper divisors (6008475322).

12011121098 is an equidigital number, since it uses as much as digits as its factorization.

12011121098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971592.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 12011121098 in words is "twelve billion, eleven million, one hundred twenty-one thousand, ninety-eight".