12020120110021 has 8 divisors (see below), whose sum is σ = 12779389388160. Its totient is φ = 11280572111952.

The previous prime is 12020120109973. The next prime is 12020120110079. The reversal of 12020120110021 is 12001102102021.

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 12020120110021 - 2³³ = 12011530175429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020120109983 and 12020120110010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020120110321) 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, 4930318761 + ... + 4930321198.

It is an arithmetic number, because the mean of its divisors is an integer number (1597423673520).

Almost surely, 2^{12020120110021} is an apocalyptic number.

It is an amenable number.

12020120110021 is a deficient number, since it is larger than the sum of its proper divisors (759269278139).

12020120110021 is an equidigital number, since it uses as much as digits as its factorization.

12020120110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9860640035.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12020120110021 its reverse (12001102102021), we get a palindrome (24021222212042).

The spelling of 12020120110021 in words is "twelve trillion, twenty billion, one hundred twenty million, one hundred ten thousand, twenty-one".