12020000101021 has 16 divisors (see below), whose sum is σ = 13241131263360. Its totient is φ = 10820287149120.

The previous prime is 12020000101013. The next prime is 12020000101051. The reversal of 12020000101021 is 12010100002021.

It is a cyclic number.

It is not a de Polignac number, because 12020000101021 - 2³ = 12020000101013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020000100989 and 12020000101007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020000101051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13449735 + ... + 14315563.

It is an arithmetic number, because the mean of its divisors is an integer number (827570703960).

Almost surely, 2^{12020000101021} is an apocalyptic number.

12020000101021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020000101021 is a deficient number, since it is larger than the sum of its proper divisors (1221131162339).

12020000101021 is a wasteful number, since it uses less digits than its factorization.

12020000101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878196.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 12020000101021 its reverse (12010100002021), we get a palindrome (24030100103042).

The spelling of 12020000101021 in words is "twelve trillion, twenty billion, one hundred one thousand, twenty-one".