2020121221101 has 16 divisors (see below), whose sum is σ = 2714460432768. Its totient is φ = 1336274201600.

The previous prime is 2020121221099. The next prime is 2020121221103. The reversal of 2020121221101 is 1011221210202.

It is an interprime number because it is at equal distance from previous prime (2020121221099) and next prime (2020121221103).

It is a cyclic number.

It is not a de Polignac number, because 2020121221101 - 2¹ = 2020121221099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020121221103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325665 + ... + 2036246.

It is an arithmetic number, because the mean of its divisors is an integer number (169653777048).

Almost surely, 2^{2020121221101} is an apocalyptic number.

It is an amenable number.

2020121221101 is a deficient number, since it is larger than the sum of its proper divisors (694339211667).

2020121221101 is a wasteful number, since it uses less digits than its factorization.

2020121221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364132.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2020121221101 its reverse (1011221210202), we get a palindrome (3031342431303).

The spelling of 2020121221101 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred one".