20200021122203 has 4 divisors (see below), whose sum is σ = 21753868900848. Its totient is φ = 18646173343560.

The previous prime is 20200021122199. The next prime is 20200021122221. The reversal of 20200021122203 is 30222112000202.

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 20200021122203 - 2² = 20200021122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20200021122233) 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, 776923889303 + ... + 776923889328.

It is an arithmetic number, because the mean of its divisors is an integer number (5438467225212).

Almost surely, 2^{20200021122203} is an apocalyptic number.

20200021122203 is a deficient number, since it is larger than the sum of its proper divisors (1553847778645).

20200021122203 is a wasteful number, since it uses less digits than its factorization.

20200021122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553847778644.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20200021122203 its reverse (30222112000202), we get a palindrome (50422133122405).

The spelling of 20200021122203 in words is "twenty trillion, two hundred billion, twenty-one million, one hundred twenty-two thousand, two hundred three".