12020021122021 has 8 divisors (see below), whose sum is σ = 13112776245600. Its totient is φ = 10927270320240.

The previous prime is 12020021122013. The next prime is 12020021122097. The reversal of 12020021122021 is 12022112002021.

It is a happy number.

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 12020021122021 - 2³ = 12020021122013 is a prime.

It is a super-2 number, since 2×12020021122021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020021121986 and 12020021122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020024122021) 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, 8203035 + ... + 9556663.

It is an arithmetic number, because the mean of its divisors is an integer number (1639097030700).

Almost surely, 2^{12020021122021} is an apocalyptic number.

12020021122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12020021122021 is a deficient number, since it is larger than the sum of its proper divisors (1092755123579).

12020021122021 is a wasteful number, since it uses less digits than its factorization.

12020021122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160899.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12020021122021 its reverse (12022112002021), we get a palindrome (24042133124042).

The spelling of 12020021122021 in words is "twelve trillion, twenty billion, twenty-one million, one hundred twenty-two thousand, twenty-one".