20212020212101 has 32 divisors (see below), whose sum is σ = 21843692985600. Its totient is φ = 18643582080000.

The previous prime is 20212020212081. The next prime is 20212020212107. The reversal of 20212020212101 is 10121202021202.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20212020212101 is a prime.

It is a super-2 number, since 2×20212020212101² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212020212107) 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, 586331296 + ... + 586365766.

It is an arithmetic number, because the mean of its divisors is an integer number (682615405800).

Almost surely, 2^{20212020212101} is an apocalyptic number.

It is an amenable number.

20212020212101 is a deficient number, since it is larger than the sum of its proper divisors (1631672773499).

20212020212101 is a wasteful number, since it uses less digits than its factorization.

20212020212101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39661.

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

Adding to 20212020212101 its reverse (10121202021202), we get a palindrome (30333222233303).

The spelling of 20212020212101 in words is "twenty trillion, two hundred twelve billion, twenty million, two hundred twelve thousand, one hundred one".