20200221110131 has 4 divisors (see below), whose sum is σ = 20200233778632. Its totient is φ = 20200208441632.

The previous prime is 20200221110123. The next prime is 20200221110143. The reversal of 20200221110131 is 13101112200202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20200221110131 - 2³ = 20200221110123 is a prime.

It is a super-2 number, since 2×20200221110131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20230221110131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3528070 + ... + 7269643.

It is an arithmetic number, because the mean of its divisors is an integer number (5050058444658).

Almost surely, 2^{20200221110131} is an apocalyptic number.

20200221110131 is a deficient number, since it is larger than the sum of its proper divisors (12668501).

20200221110131 is a wasteful number, since it uses less digits than its factorization.

20200221110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12668500.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20200221110131 its reverse (13101112200202), we get a palindrome (33301333310333).

The spelling of 20200221110131 in words is "twenty trillion, two hundred billion, two hundred twenty-one million, one hundred ten thousand, one hundred thirty-one".