12020102121 has 8 divisors (see below), whose sum is σ = 16176586464. Its totient is φ = 7938509600.

The previous prime is 12020102057. The next prime is 12020102147. The reversal of 12020102121 is 12120102021.

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 12020102121 - 2⁶ = 12020102057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020102097 and 12020102106.

It is not an unprimeable number, because it can be changed into a prime (12020102191) 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, 18722580 + ... + 18723221.

It is an arithmetic number, because the mean of its divisors is an integer number (2022073308).

Almost surely, 2^12020102121 is an apocalyptic number.

It is an amenable number.

12020102121 is a deficient number, since it is larger than the sum of its proper divisors (4156484343).

12020102121 is a wasteful number, since it uses less digits than its factorization.

12020102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37445911.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020102121 its reverse (12120102021), we get a palindrome (24140204142).

The spelling of 12020102121 in words is "twelve billion, twenty million, one hundred two thousand, one hundred twenty-one".