12021101108 has 24 divisors (see below), whose sum is σ = 22684240320. Its totient is φ = 5555321280.

The previous prime is 12021101101. The next prime is 12021101153. The reversal of 12021101108 is 80110112021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021101101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925816 + ... + 1932047.

It is an arithmetic number, because the mean of its divisors is an integer number (945176680).

Almost surely, 2^12021101108 is an apocalyptic number.

It is an amenable number.

12021101108 is a deficient number, since it is larger than the sum of its proper divisors (10663139212).

12021101108 is a wasteful number, since it uses less digits than its factorization.

12021101108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857927 (or 3857925 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12021101108 its reverse (80110112021), we get a palindrome (92131213129).

The spelling of 12021101108 in words is "twelve billion, twenty-one million, one hundred one thousand, one hundred eight".