20212220102011 has 16 divisors (see below), whose sum is σ = 23991012910080. Its totient is φ = 16668755812800.

The previous prime is 20212220102003. The next prime is 20212220102023. The reversal of 20212220102011 is 11020102221202.

It is a happy number.

It is not a de Polignac number, because 20212220102011 - 2³ = 20212220102003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212220102051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520618890 + ... + 520657711.

It is an arithmetic number, because the mean of its divisors is an integer number (1499438306880).

Almost surely, 2^{20212220102011} is an apocalyptic number.

20212220102011 is a deficient number, since it is larger than the sum of its proper divisors (3778792808069).

20212220102011 is a wasteful number, since it uses less digits than its factorization.

20212220102011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041276714.

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

Adding to 20212220102011 its reverse (11020102221202), we get a palindrome (31232322323213).

The spelling of 20212220102011 in words is "twenty trillion, two hundred twelve billion, two hundred twenty million, one hundred two thousand, eleven".