12020021222011 has 16 divisors (see below), whose sum is σ = 13884854519808. Its totient is φ = 10283942851200.

The previous prime is 12020021222003. The next prime is 12020021222039. The reversal of 12020021222011 is 11022212002021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12020021222011 - 2³ = 12020021222003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12020021222411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1644046 + ... + 5171356.

It is an arithmetic number, because the mean of its divisors is an integer number (867803407488).

Almost surely, 2^{12020021222011} is an apocalyptic number.

12020021222011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12020021222011 is a deficient number, since it is larger than the sum of its proper divisors (1864833297797).

12020021222011 is a wasteful number, since it uses less digits than its factorization.

12020021222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3545562.

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

Adding to 12020021222011 its reverse (11022212002021), we get a palindrome (23042233224032).

The spelling of 12020021222011 in words is "twelve trillion, twenty billion, twenty-one million, two hundred twenty-two thousand, eleven".