20212011221101 has 12 divisors (see below), whose sum is σ = 23868621554016. Its totient is φ = 16765723587960.

The previous prime is 20212011221057. The next prime is 20212011221113. The reversal of 20212011221101 is 10112211021202.

It is not a de Polignac number, because 20212011221101 - 2¹¹ = 20212011219053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212011221201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1502298255 + ... + 1502311708.

It is an arithmetic number, because the mean of its divisors is an integer number (1989051796168).

Almost surely, 2^{20212011221101} is an apocalyptic number.

It is an amenable number.

20212011221101 is a deficient number, since it is larger than the sum of its proper divisors (3656610332915).

20212011221101 is an equidigital number, since it uses as much as digits as its factorization.

20212011221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3004610032 (or 3004610001 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20212011221101 its reverse (10112211021202), we get a palindrome (30324222242303).

The spelling of 20212011221101 in words is "twenty trillion, two hundred twelve billion, eleven million, two hundred twenty-one thousand, one hundred one".