12020611107021 has 32 divisors (see below), whose sum is σ = 17609256144000. Its totient is φ = 7233288679680.

The previous prime is 12020611107013. The next prime is 12020611107047. The reversal of 12020611107021 is 12070111602021.

It is not a de Polignac number, because 12020611107021 - 2³ = 12020611107013 is a prime.

It is a super-2 number, since 2×12020611107021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12020611106982 and 12020611107000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020611107061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11235055 + ... + 12258371.

It is an arithmetic number, because the mean of its divisors is an integer number (550289254500).

Almost surely, 2^{12020611107021} is an apocalyptic number.

12020611107021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020611107021 is a deficient number, since it is larger than the sum of its proper divisors (5588645036979).

12020611107021 is a wasteful number, since it uses less digits than its factorization.

12020611107021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025869.

The product of its (nonzero) digits is 336, while the sum is 24.

Adding to 12020611107021 its reverse (12070111602021), we get a palindrome (24090722709042).

The spelling of 12020611107021 in words is "twelve trillion, twenty billion, six hundred eleven million, one hundred seven thousand, twenty-one".