12121023101 has 8 divisors (see below), whose sum is σ = 13236563808. Its totient is φ = 11007754000.

The previous prime is 12121023091. The next prime is 12121023113. The reversal of 12121023101 is 10132012121.

12121023101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12121023101 - 2⁶ = 12121023037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121023301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556730 + ... + 578091.

It is an arithmetic number, because the mean of its divisors is an integer number (1654570476).

Almost surely, 2^12121023101 is an apocalyptic number.

12121023101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12121023101 is a deficient number, since it is larger than the sum of its proper divisors (1115540707).

12121023101 is a wasteful number, since it uses less digits than its factorization.

12121023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135803.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12121023101 its reverse (10132012121), we get a palindrome (22253035222).

The spelling of 12121023101 in words is "twelve billion, one hundred twenty-one million, twenty-three thousand, one hundred one".